Phosphoramidites - RNA / BOC Sciences

N4-Benzoyl-5'-O-DMT-2'-O-MOE-cytidine 3'-CE phosphoramidite (BRP-02191)

Description: N4-Benzoyl-5'-O-DMT-2'-O-MOE-cytidine 3'-CE phosphoramidite is a modified phosphoramidite designed for efficient and controlled synthesis of RNA and DNA oligonucleotides. The protective groups and modifications, such as N4-benzoyl, 5'-O-DMTr, and 2'-O-MOE, enhance the stability of the resulting nucleic acids and facilitate their incorporation into nucleic acid chains during solid-phase synthesis. This compound is crucial in the production of antisense oligonucleotides, siRNA, probes, and primers, providing enhanced resistance to enzymatic degradation and improved performance in various applications.

CAT: BRP-02191

CAS: 251647-54-8

MF: C49H58N5O10P

MF: 907.99

Purity: ≥95%

Appearance: White Powder

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InChIKey: IAFVTVZPQIFRAU-NXPFYNPLSA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCC#N)OC1C(OC(C1OCCOC)N2C=CC(=NC2=O)NC(=O)C3=CC=CC=C3)COC(C4=CC=CC=C4)(C5=CC=C(C=C5)OC)C6=CC=C(C=C6)OC

IUPAC Name: N-[1-[(2R,3R,4R,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxy-3-(2-methoxyethoxy)oxolan-2-yl]-2-oxopyrimidin-4-yl]benzamide

InChI: InChI=1S/C49H58N5O10P/c1-34(2)54(35(3)4)65(62-30-14-28-50)64-44-42(63-47(45(44)60-32-31-57-5)53-29-27-43(52-48(53)56)51-46(55)36-15-10-8-11-16-36)33-61-49(37-17-12-9-13-18-37,38-19-23-40(58-6)24-20-38)39-21-25-41(59-7)26-22-39/h8-13,15-27,29,34-35,42,44-45,47H,14,30-33H2,1-7H3,(H,51,52,55,56)/t42-,44-,45-,47-,65?/m1/s1

Synonyms: N4-Bz-5'-O-DMTr-2'-O-(2-methoxyethyl)cytidine-3'-CED-phosphoramidite; 2'-O-MOE-C(Bz)-3'-phosphoramidite; N4-Acetyl-5'-O-(4,4'-dimethoxytrityl)-2'-O-methyl-cytidine-3'-CE-cyanoethyl Phosphoramidite; N-Benzoyl-5'-O-[bis(4-methoxyphenyl)(phenyl)methyl]-3'-O-[(2-cyanoethoxy)(diisopropylamino)phosphino]-2'-O-(2-methoxyethyl)cytidine; Cytidine, N-benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-(2-methoxyethyl)-, 3'-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]; 2'-O-MOE-rC(Bz) Phosphoramidite

5'-O-DMT-N4-Benzoyl-3'-O-tert-butyldimethylsilyl-cytidine 2'-CE phosphoramidite (BRP-02193)

Description: 5'-O-DMT-N4-Benzoyl-3'-O-tert-butyldimethylsilyl-cytidine 2'-CE phosphoramidite, a highly acclaimed reagent in the realm of biomedicine, exhibits unparalleled significance. Notably, this phosphoramidite derivative finds widespread employment in the synthesis of altered oligonucleotides, exuding immense promise for gene therapy, drug conveyance, and diagnostic modalities.

CAT: BRP-02193

CAS: 129470-47-9

MF: C52H66N5O9PSi

MF: 964.17

Purity: ≥97% by HPLC

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InChIKey: KGHSXHZESVOJIE-YOVDOAOFSA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCC#N)OC1C(C(OC1N2C=CC(=NC2=O)NC(=O)C3=CC=CC=C3)COC(C4=CC=CC=C4)(C5=CC=C(C=C5)OC)C6=CC=C(C=C6)OC)O[Si](C)(C)C(C)(C)C

IUPAC Name: N-[1-[(2R,3R,4R,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[tert-butyl(dimethyl)silyl]oxy-3-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxyoxolan-2-yl]-2-oxopyrimidin-4-yl]benzamide

InChI: InChI=1S/C52H66N5O9PSi/c1-36(2)57(37(3)4)67(63-34-18-32-53)65-47-46(66-68(10,11)51(5,6)7)44(64-49(47)56-33-31-45(55-50(56)59)54-48(58)38-19-14-12-15-20-38)35-62-52(39-21-16-13-17-22-39,40-23-27-42(60-8)28-24-40)41-25-29-43(61-9)30-26-41/h12-17,19-31,33,36-37,44,46-47,49H,18,34-35H2,1-11H3,(H,54,55,58,59)/t44-,46-,47-,49-,67?/m1/s1

Synonyms: N4-Benzoyl-3'-O-tert-butyldimethylsilyl-5'-O-DMT-cytidine 2'-CE phosphoramidite; Cytidine, N-benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-, 2'-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]; 3'-TBDMS-Bz-rC Phosphoramidite; 3'-O-TBDMS-5'-O-DMT-N4-Bz-rC CED phosphoramidite; 5'-O-DMT-3'-TBDMS-N4-benzoyl-cytidine 2'-CE phosphoramidite

Ac-dG Phosphoramidite (BRP-02196)

Description: Ac-dG Phosphoramidite is a modified phosphoramidite designed for efficient and controlled synthesis of DNA oligonucleotides. The 5'-O-DMTr and N2-acetyl protective groups ensure stability and facilitate precise addition during solid-phase synthesis, making it valuable for producing high-quality DNA probes, primers, and therapeutic oligonucleotides.

CAT: BRP-02196

CAS: 2417251-95-5

MF: C42H50N7O8P

MF: 811.88

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InChIKey: XMEBTRUEVNJJBZ-WFPBXDAHSA-N

CanonicalSMILES: N#CCCOP(OC1CC(OC1COC(C=2C=CC=CC2)(C3=CC=C(OC)C=C3)C4=CC=C(OC)C=C4)N5C=NC=6C(=O)N=C(NC(=O)C)NC65)N(C(C)C)C(C)C

IUPAC Name: (2R,3S,5R)-5-(2-acetamido-6-oxo-1,6-dihydro-9H-purin-9-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite

InChI: InChI=1S/C42H50N7O8P/c1-27(2)49(28(3)4)58(55-23-11-22-43)57-35-24-37(48-26-44-38-39(48)46-41(45-29(5)50)47-40(38)51)56-36(35)25-54-42(30-12-9-8-10-13-30,31-14-18-33(52-6)19-15-31)32-16-20-34(53-7)21-17-32/h8-10,12-21,26-28,35-37H,11,23-25H2,1-7H3,(H2,45,46,47,50,51)/t35-,36+,37+,58?/m0/s1

Synonyms: Ac-dG-CE Phosphoramidite; 5'-Dimethoxytrityl-N2-acetyl-2'-deoxyguanosine, 3'-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite; 5'-O-DMTr-N2-Ac-2'-deoxy-guanosine-3'-CED phosphoramidite; 5'-O-(4,4'-Dimethoxytrityl)-N2-acetyl-2'-deoxy-guanosine-3'-O-[(2-cyanoethyl)(N,N-diisopropyl)]phosphoramidite; 2'-deoxy-G(Ac) CE phosphoramidite; 5'-O-DMT-2'-deoxy-G(Ac) phosporamidite; DMT-2'-deoxy-rG(Ac) amidite

Bn-dU CEP (BRP-02197)

Description: Bn-dU CEP is a modified phosphoramidite used in oligonucleotide synthesis. It features a benzylcarbamoyl group attached to the 5-position of the 2'-deoxyuridine (dU) base, and is equipped with a cyanoethyl (CE) protecting group on the phosphoramidite moiety. This modification allows for the incorporation of the benzylcarbamoyl group into synthetic DNA sequences, potentially altering the properties of the resulting oligonucleotides for specific biochemical and biophysical applications.

CAT: BRP-02197

MF: C47H54N5O9P

MF: 863.95

Purity: ≥95%

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InChIKey: IBKSJCLOSMZOIH-PJQDADNVSA-N

IUPAC Name: (2R,3S,5R)-5-(5-(benzylcarbamoyl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite

InChI: InChI=1S/C47H54N5O9P/c1-32(2)52(33(3)4)62(59-27-13-26-48)61-41-28-43(51-30-40(45(54)50-46(51)55)44(53)49-29-34-14-9-7-10-15-34)60-42(41)31-58-47(35-16-11-8-12-17-35,36-18-22-38(56-5)23-19-36)37-20-24-39(57-6)25-21-37/h7-12,14-25,30,32-33,41-43H,13,27-29,31H2,1-6H3,(H,49,53)(H,50,54,55)/t41-,42+,43+,62?/m0/s1

Synonyms: Bn-Du Phosphoramidite; 5-(Benzylcarbamoyl)-dU CE-Phosphoramidite; 5-(Benzylcarbamoyl)-2'-deoxy-dU CE-Phosphoramidite; Bn-dU 3'-CE-Phosphoramidite

C8-Alkyne-dA CEP (BRP-02198)

Description: C8-Alkyne-dA phosphoramidite is a specialized phosphoramidite used in the chemical synthesis of oligonucleotides. It features an alkyne group attached to the C8 position of deoxyadenosine, allowing for click chemistry reactions, such as the attachment of various functional groups or labels. This phosphoramidite is used to introduce reactive alkyne moieties into oligonucleotides, facilitating the creation of modified nucleic acids for applications in molecular biology, diagnostics, and the development of therapeutic agents.

CAT: BRP-02198

CAS: 1002322-75-9

MF: C53H63N6O7P

MF: 927.10

Purity: ≥95%

Appearance: White to Off-white Foam

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Boiling Point: 955.7±65.0°C at 760 mmHg

InChIKey: DMVMVASVMSMXMZ-MVAJTOPMSA-N

CanonicalSMILES: N#CCCOP(OC1CC(OC1COC(C=2C=CC=CC2)(C3=CC=C(OC)C=C3)C4=CC=C(OC)C=C4)N5C=C(C#CCCCCC#C)C=6C(=NC=NC65)NC(=O)C(C)C)N(C(C)C)C(C)C

IUPAC Name: (2R,3S,5R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(4-isobutyramido-5-(octa-1,7-diyn-1-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite

InChI: InChI=1S/C53H63N6O7P/c1-10-11-12-13-14-16-20-40-34-58(51-49(40)50(55-36-56-51)57-52(60)37(2)3)48-33-46(66-67(64-32-19-31-54)59(38(4)5)39(6)7)47(65-48)35-63-53(41-21-17-15-18-22-41,42-23-27-44(61-8)28-24-42)43-25-29-45(62-9)30-26-43/h1,15,17-18,21-30,34,36-39,46-48H,11-14,19,32-33,35H2,2-9H3,(H,55,56,57,60)/t46-,47+,48+,67?/m0/s1

Synonyms: C8-Alkyne-dA Phosphoramidite; Propanamide, N-[7-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-5-(1,7-octadiyn-1-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-2-methyl-; N-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-5-(1,7-octadiyn-1-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-2-methylpropanamide; 7-Deaza-C8-Alkyne-2'-deoxy-adenosine 3'-CE-Phosphoramidite

C-TOM-CE Phosphoramidite (BRP-02199)

Description: The synthesis of RNA using monomers containing the 2'-O-Triisopropylsilyloxymethyl (TOM) group (TOM-Protecting-Group) has very high coupling efficiency along with fast, simple deprotection.

CAT: BRP-02199

CAS: 253586-12-8

MF: C51H72N5O10PSi

MF: 974.22

Purity: ≥95%

Appearance: White to Off-white Free-flowing Powder

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InChIKey: LAUSLJOCUCNMJI-RLKIZYSKSA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCC#N)OC1C(OC(C1OCO[Si](C(C)C)(C(C)C)C(C)C)N2C=CC(=NC2=O)NC(=O)C)COC(C3=CC=CC=C3)(C4=CC=C(C=C4)OC)C5=CC=C(C=C5)OC

IUPAC Name: N-[1-[(2R,3R,4R,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxy-3-[tri(propan-2-yl)silyloxymethoxy]oxolan-2-yl]-2-oxopyrimidin-4-yl]acetamide

InChI: InChI=1S/C51H72N5O10PSi/c1-34(2)56(35(3)4)67(63-31-17-29-52)66-47-45(32-62-51(40-18-15-14-16-19-40,41-20-24-43(59-12)25-21-41)42-22-26-44(60-13)27-23-42)65-49(55-30-28-46(53-39(11)57)54-50(55)58)48(47)61-33-64-68(36(5)6,37(7)8)38(9)10/h14-16,18-28,30,34-38,45,47-49H,17,31-33H2,1-13H3,(H,53,54,57,58)/t45-,47-,48-,49-,67?/m1/s1

Synonyms: 5'-Dimethoxytrityl-N-acetyl-Cytidine, 2'-O-triisopropylsilyloxymethyl-3'-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite; N-Acetyl-2'-O-[(triisopropylsilyloxy)methyl]-3'-O-[diisopropylamino(2-cyanoethoxy)phosphino]-5'-O-(4,4'-dimethoxytrityl)cytidine; (2R,3R,4R,5R)-5-(4-acetamido-2-oxopyrimidin-1(2H)-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-(((triisopropylsilyl)oxy)methoxy)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite; Cytidine, N-acetyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3'-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Related CAS: 1509908-11-5 (Deleted CAS)

2,6-Diamino(N2,N6-diPac)-DMT-2'-O-TBDMS-purine riboside-CE-Phosphoramidite (BRP-02200)

Description: 2,6-Diamino(N2,N6-diPac)-DMT-2'-O-TBDMS-purine riboside-CE-phosphoramidite is a modified phosphoramidite reagent used for the synthesis of oligonucleotides. It features multiple protective groups: a dimethoxytrityl (DMT) group at the 5'-hydroxyl position, a tert-butyldimethylsilyl (TBDMS) group at the 2'-hydroxyl position, and cyanoethyl (CE) group on the phosphoramidite at the 3' position. These modifications ensure the stability and integrity of the purine riboside during the synthesis process, facilitating the creation of high-quality, stable oligonucleotides for research and therapeutic applications.

CAT: BRP-02200

CAS: 2101776-87-6

MF: C62H75N8O11PSi

MF: 1167.37

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InChIKey: LFCZZILBKNBHDI-IGXISVFNSA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCC#N)OC1C(OC(C1O[Si](C)(C)C(C)(C)C)N2C=NC3=C(N=C(N=C32)NC(=O)COC4=CC=CC=C4)NC(=O)COC5=CC=CC=C5)COC(C6=CC=CC=C6)(C7=CC=C(C=C7)OC)C8=CC=C(C=C8)OC

IUPAC Name: N-[9-[(2R,3R,4R,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-3-[tert-butyl(dimethyl)silyl]oxy-4-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxyoxolan-2-yl]-2-[(2-phenoxyacetyl)amino]purin-6-yl]-2-phenoxyacetamide

InChI: InChI=1S/C62H75N8O11PSi/c1-42(2)70(43(3)4)82(78-37-21-36-63)80-55-51(38-77-62(44-22-15-12-16-23-44,45-28-32-47(73-8)33-29-45)46-30-34-48(74-9)35-31-46)79-59(56(55)81-83(10,11)61(5,6)7)69-41-64-54-57(65-52(71)39-75-49-24-17-13-18-25-49)67-60(68-58(54)69)66-53(72)40-76-50-26-19-14-20-27-50/h12-20,22-35,41-43,51,55-56,59H,21,37-40H2,1-11H3,(H2,65,66,67,68,71,72)/t51-,55-,56-,59-,82?/m1/s1

Synonyms: (2R,3R,4R,5R)-5-(2,6-bis(2-phenoxyacetamido)-9H-purin-9-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-((tert-butyldimethylsilyl)oxy)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite; Diaminopurine (di-PAC) CED phosphoramidite; 2,6-Diamino(N2,N6-diPhenoxyacetyl)-5'-O-(4,4'-Dimethoxytrityl)-2'-O-tert-butyldimethylsilyl-purine riboside-3'-cyanoethyl Phosphoramidite; DMT-2'-O-TBDMS-N2-Pac-A(N6-Pac) 3'-CE-Phosphoramidite

G-TOM-CE Phosphoramidite (BRP-02201)

CAT: BRP-02201

CAS: 253586-14-0

MF: C52H72N7O10PSi

MF: 1014.24

Purity: ≥98% by HPLC

Appearance: White to Golden Free-flowing Powder

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InChIKey: IVLLKXVYBCLHEZ-VPVWFKJASA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCC#N)OC1C(OC(C1OCO[Si](C(C)C)(C(C)C)C(C)C)N2C=NC3=C2N=C(NC3=O)NC(=O)C)COC(C4=CC=CC=C4)(C5=CC=C(C=C5)OC)C6=CC=C(C=C6)OC

IUPAC Name: N-[9-[(2R,3R,4R,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxy-3-[tri(propan-2-yl)silyloxymethoxy]oxolan-2-yl]-6-oxo-1H-purin-2-yl]acetamide

InChI: InChI=1S/C52H72N7O10PSi/c1-33(2)59(34(3)4)70(66-29-17-28-53)69-46-44(30-65-52(39-18-15-14-16-19-39,40-20-24-42(62-12)25-21-40)41-22-26-43(63-13)27-23-41)68-50(47(46)64-32-67-71(35(5)6,36(7)8)37(9)10)58-31-54-45-48(58)56-51(55-38(11)60)57-49(45)61/h14-16,18-27,31,33-37,44,46-47,50H,17,29-30,32H2,1-13H3,(H2,55,56,57,60,61)/t44-,46-,47-,50-,70?/m1/s1

Synonyms: 5'-Dimethoxytrityl-N-acetyl-Guanosine, 2'-O-triisopropylsilyloxymethyl-3'-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite; N2-acetyl-5'-O-(4,4'-dimethoxytrityl)-2'-O-triisopropylsilyloxymethyl-guanosine-Phosphoramidite; N-Acetyl-2'-O-[(triisopropylsilyloxy)methyl]-3'-O-[diisopropylamino(2-cyanoethoxy)phosphino]-5'-O-(4,4'-dimethoxytrityl)guanosine; Guanosine, N-acetyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3'-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]; 5'-O-DMTr-2'-O-TOM-G(Ac) Phosphoramidite; DMTr-2'-O-TOM-G(Ac) 3'-CE'-Phosphoramidite; G(Ac)-TOM-CE Phosphoramidite

DMT-dP-CE-Phosphoramidite (BRP-02202)

Description: DMT-dP-CE-Phosphoramidite is crucial for the automated synthesis of oligonucleotides, providing the necessary protection for functional groups to ensure accurate and efficient sequence assembly. The modified base ''dP'' allows for the incorporation of unique features into the oligonucleotides, which can be tailored for specific research, diagnostic, or therapeutic applications.

CAT: BRP-02202

CAS: 2133842-85-8

MF: C51H56N5O9P

MF: 913.99

Purity: ≥95%

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InChIKey: WAQZWDAZYFQSHE-CNYVYYQHSA-N

CanonicalSMILES: N#CCCOP(OC1CC(OC1COC(C=2C=CC=CC2)(C3=CC=C(OC)C=C3)C4=CC=C(OC)C=C4)N5C=C(C(=O)NC5=O)C(=O)NCC6=CC=CC=7C=CC=CC76)N(C(C)C)C(C)C

IUPAC Name: (2R,3S,5R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(5-((naphthalen-1-ylmethyl)carbamoyl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite

InChI: InChI=1S/C51H56N5O9P/c1-34(2)56(35(3)4)66(63-29-13-28-52)65-45-30-47(55-32-44(49(58)54-50(55)59)48(57)53-31-37-16-12-15-36-14-10-11-19-43(36)37)64-46(45)33-62-51(38-17-8-7-9-18-38,39-20-24-41(60-5)25-21-39)40-22-26-42(61-6)27-23-40/h7-12,14-27,32,34-35,45-47H,13,29-31,33H2,1-6H3,(H,53,57)(H,54,58,59)/t45-,46+,47+,66?/m0/s1

Synonyms: Nap-dU Phosphoramidite; DMTr-5-[N-(naphthalen-2-ylmethyl)formamide]-dU-3'-CE-Phosphoramidite; Nap-dU CEP; Uridine, 5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-5-[5-(naphthalen-1-ylmethyl)carbamoyl]-, 3'-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

U-TOM-CE Phosphoramidite (BRP-02203)

Description: U-TOM-CE phosphoramidite is a phosphoramidite used in oligonucleotide synthesis. It features the TOM (triisopropylsilyloxymethyl) protecting group at the 2'-hydroxyl position and a cyanoethyl (CE) protecting group on the phosphoramidite at the 3' position. The TOM group provides protection during synthesis and can be removed under mild conditions, making this reagent useful for synthesizing RNA oligonucleotides. This phosphoramidite reagent enhances the stability and efficiency of oligonucleotide synthesis, which is crucial for applications in molecular biology, diagnostics, and therapeutic development.

CAT: BRP-02203

CAS: 220230-62-6

MF: C49H69N4O10PSi

MF: 933.17

Purity: ≥95%

Appearance: White to Off-white Free-flowing Powder

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Storage: Store at -20 °C

InChIKey: FKVFIIQPEPLSRC-BIPLCDCWSA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCC#N)OC1C(OC(C1OCO[Si](C(C)C)(C(C)C)C(C)C)N2C=CC(=O)NC2=O)COC(C3=CC=CC=C3)(C4=CC=C(C=C4)OC)C5=CC=C(C=C5)OC

IUPAC Name: 3-[[(2R,3R,4R,5R)-2-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-5-(2,4-dioxopyrimidin-1-yl)-4-[tri(propan-2-yl)silyloxymethoxy]oxolan-3-yl]oxy-[di(propan-2-yl)amino]phosphanyl]oxypropanenitrile

InChI: InChI=1S/C49H69N4O10PSi/c1-33(2)53(34(3)4)64(60-30-16-28-50)63-45-43(62-47(52-29-27-44(54)51-48(52)55)46(45)58-32-61-65(35(5)6,36(7)8)37(9)10)31-59-49(38-17-14-13-15-18-38,39-19-23-41(56-11)24-20-39)40-21-25-42(57-12)26-22-40/h13-15,17-27,29,33-37,43,45-47H,16,30-32H2,1-12H3,(H,51,54,55)/t43-,45-,46-,47-,64?/m1/s1

Synonyms: 5'-Dimethoxytrityl-Uridine, 2'-O-triisopropylsilyloxymethyl-3'-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite; 2'-O-[(Triisopropylsilyloxy)methyl]-3'-O-[diisopropylamino(2-cyanoethoxy)phosphino]-5'-O-(4,4'-dimethoxytrityl)uridine; (2R,3R,4R,5R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-4-(((triisopropylsilyl)oxy)methoxy)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite; Uridine, 5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3'-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]; 2'-O-TOM-U-3'-CE Phosphoramidite

Related CAS: 1509908-14-8 (Deleted CAS)

Spacer C12 CE Phosphoramidite (BRP-02205)

Description: Spacer phosphoramidites C3, 9, and 18 are used to insert spacer arms in oligonucleotides. When a longer spacer is required, the compound can be added multiple times.

CAT: BRP-02205

CAS: 158665-27-1

MF: C42H61N2O5P

MF: 704.93

Purity: >95% by HPLC

Appearance: Colorless oily matter

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Boiling Point: 702.3±60.0 °C at 760 mmHg

InChIKey: QZFCUJPRTWVAIA-UHFFFAOYSA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCCCCCCCCCCCOC(C1=CC=CC=C1)(C2=CC=C(C=C2)OC)C3=CC=C(C=C3)OC)OCCC#N

IUPAC Name: 3-[12-[bis(4-methoxyphenyl)-phenylmethoxy]dodecoxy-[di(propan-2-yl)amino]phosphanyl]oxypropanenitrile

InChI: InChI=1S/C42H61N2O5P/c1-35(2)44(36(3)4)50(49-34-20-31-43)48-33-19-14-12-10-8-7-9-11-13-18-32-47-42(37-21-16-15-17-22-37,38-23-27-40(45-5)28-24-38)39-25-29-41(46-6)30-26-39/h15-17,21-30,35-36H,7-14,18-20,32-34H2,1-6H3

Synonyms: SPACER-C12 CEP; Phosphoramidous acid, N,N-bis(1-methylethyl)-, 12-[bis(4-methoxyphenyl)phenylmethoxy]dodecyl 2-cyanoethyl ester; 12-(4,4'-Dimethoxytrityloxy)dodecyl-1-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite; 12-(Bis(4-methoxyphenyl)(phenyl)methoxy)dodecyl(2-cyanoethyl)diisopropyl phosphoramidite; Spacer Phosphoramidite C12; Spacer-C12 Phosphoramidite; Spacer C12 CEP hosphoramidite; C12 Spacer Amidite

TFA-Pentylaminolinker Phosphoramidite (BRP-02206)

Description: TFA-Pentylaminolinker Phosphoramidite is a specialized reagent used in the synthesis of oligonucleotides, particularly for introducing functional groups or linkers during automated DNA or RNA synthesis.

CAT: BRP-02206

CAS: 139747-14-1

MF: C16H29F3N3O3P

MF: 399.39

Purity: ≥97% by HPLC

Appearance: Liquid

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Storage: Store at -20 °C

Shipping: Dry ice

InChIKey: OVFVLUKVODOLBV-UHFFFAOYSA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCCCCNC(=O)C(F)(F)F)OCCC#N

IUPAC Name: N-[5-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxypentyl]-2,2,2-trifluoroacetamide

InChI: InChI=1S/C16H29F3N3O3P/c1-13(2)22(14(3)4)26(25-12-8-9-20)24-11-7-5-6-10-21-15(23)16(17,18)19/h13-14H,5-8,10-12H2,1-4H3,(H,21,23)

Synonyms: 2-Cyanoethyl (5-(2,2,2-trifluoroacetamido)pentyl) diisopropylphosphoramidite; Phosphoramidous acid, bis(1-methylethyl)-, 2-cyanoethyl 5-[(trifluoroacetyl)amino]pentyl ester

PC Linker Phosphoramidite (BRP-02207)

Description: PC Linker Phosphoramidite, a phosphoramidite compound, is used to incorporate photolytic linkages into oligonucleotides.

CAT: BRP-02207

CAS: 168329-40-6

MF: C39H46N3O7P

MF: 699.78

Purity: ≥95%

Appearance: Pale yellow foam

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Symbol: PC Linker-CE Phosphoramidite

Shipping: Dry ice

InChIKey: KHOFWXQDBRVNMM-UHFFFAOYSA-N

CanonicalSMILES: N#CCCOP(OC(C=1C=CC=CC1N(=O)=O)CCOC(C=2C=CC=CC2)(C3=CC=C(OC)C=C3)C4=CC=C(OC)C=C4)N(C(C)C)C(C)C

IUPAC Name: 3-(bis(4-methoxyphenyl)(phenyl)methoxy)-1-(2-nitrophenyl)propyl (2-cyanoethyl) diisopropylphosphoramidite

InChI: InChI=1S/C39H46N3O7P/c1-29(2)41(30(3)4)50(48-27-12-26-40)49-38(36-15-10-11-16-37(36)42(43)44)25-28-47-39(31-13-8-7-9-14-31,32-17-21-34(45-5)22-18-32)33-19-23-35(46-6)24-20-33/h7-11,13-24,29-30,38H,12,25,27-28H2,1-6H3

Synonyms: 3-(4,4'-Dimethoxytrityl)-1-(2-nitrophenyl)-propan-1-yl-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite; PC linker CE Phoshphoramidite; 1-(O-Ph-NO2)-3-(DMTr)oxypropyl amidite; Phosphoramidous acid, N,N-bis(1-methylethyl)-, 3-[bis(4-methoxyphenyl)phenylmethoxy]-1-(2-nitrophenyl)propyl 2-cyanoethyl ester; 3-[Bis(4-methoxyphenyl)phenylmethoxy]-1-(2-nitrophenyl)propyl 2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite; Phosphoramidous acid, bis(1-methylethyl)-, 3-[bis(4-methoxyphenyl)phenylmethoxy]-1-(2-nitrophenyl)propyl 2-cyanoethyl ester

ssH-Linker (BRP-02208)

Description: ssH-Linker refers to a specific type of linker used in the synthesis of oligonucleotides, particularly in the context of RNA or DNA synthesis. This linker is designed to introduce a specific functional group or a spacer within an oligonucleotide sequence.

CAT: BRP-02208

CAS: 922522-12-1

MF: C38H53N4O5P

MF: 676.83

Purity: ≥97% by HPLC

Appearance: Solid

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Storage: Store at -20 °C

Shipping: Dry ice

InChIKey: VTFLXOVDKJUHER-UHFFFAOYSA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCCCCCNC(=O)OCCNC(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=C(C=C3)OC)OCCC#N

IUPAC Name: 2-[[(4-methoxyphenyl)-diphenylmethyl]amino]ethyl N-[6-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxyhexyl]carbamate

InChI: InChI=1S/C38H53N4O5P/c1-31(2)42(32(3)4)48(47-29-16-25-39)46-28-15-7-6-14-26-40-37(43)45-30-27-41-38(33-17-10-8-11-18-33,34-19-12-9-13-20-34)35-21-23-36(44-5)24-22-35/h8-13,17-24,31-32,41H,6-7,14-16,26-30H2,1-5H3,(H,40,43)

Synonyms: 9,11-Dioxa-2-aza-10-phosphatridecanoic acid, 10-[bis(1-methylethyl)amino]-13-cyano-, 2-[[(4-methoxyphenyl)diphenylmethyl]amino]ethyl ester; 2-[[(4-Methoxyphenyl)diphenylmethyl]amino]ethyl 10-[bis(1-methylethyl)amino]-13-cyano-9,11-dioxa-2-aza-10-phosphatridecanoate; ssH-H Amino Modifier

TFA-Hexylaminolinker Phosphoramidite (BRP-02209)

Description: TFA-Hexylaminolinker Phosphoramidite is used to insert a spacer arm in an oligonucleotide and may be added in multiple additions when a longer spacer is required.

CAT: BRP-02209

CAS: 133975-85-6

MF: C17H31F3N3O3P

MF: 413.42

Purity: ≥90%

Appearance: Colorless, light yellow solid

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Storage: Store at -20 °C

Boiling Point: 433.7±45.0 °C at 760 mmHg

Symbol: TFA-Hexylaminolinker Amidite

Shipping: Dry ice

InChIKey: SMMKTKILBQHSFL-UHFFFAOYSA-N

Solubility: Soluble in Acetonitrile, DCM, THF

CanonicalSMILES: CC(C)N(C(C)C)P(OCCCCCCNC(=O)C(F)(F)F)OCCC#N

IUPAC Name: N-[6-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxyhexyl]-2,2,2-trifluoroacetamide

InChI: InChI=1S/C17H31F3N3O3P/c1-14(2)23(15(3)4)27(26-13-9-10-21)25-12-8-6-5-7-11-22-16(24)17(18,19)20/h14-15H,5-9,11-13H2,1-4H3,(H,22,24)

Synonyms: TFA-aminolinker C6 phosphoramidite; 2-Cyanoethyl (6-(2,2,2-trifluoroacetamido)hexyl) diisopropylphosphoramidite; 6-(N-Trifluoroacetamido)hexyl-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite; 5'-Amino-Modifier C6-TFA CE Phosphoramidite; Trifluoroacetyl-hexylamine-linker Phosphoramidite; 5'-Amino-Modifier C6-TFA CEP; Trifluoroacetyl cyanoethyl phosphoramidite amino-linker; C6 TFA linker amidite; TFA-Hexylaminolinker Amidite

5'-Amino Modifier (BRP-02210)

Description: MMT-Hexylaminolinker Phosphoramidite is designed for use in automatic synthesizers to functionalize the sequence of the 5'end of the target oligonucleotide. The use of trityl-protected amino-modifiers is recommended when purification is required prior to use.

CAT: BRP-02210

CAS: 114616-27-2

MF: C35H48N3O3P

MF: 589.75

Purity: ≥97.0%

Appearance: Colorless to light yellow oil

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Storage: Store at -20 °C

Boiling Point: 634.0±55.0 °C at 760 mmHg

Symbol: MMT-hexylamine-linker amidite; N-MMT-C6 Amino Modifier

Formulation: Dilute with anhydrous acetonitrile

Shipping: Dry ice

InChIKey: YBANXOPIYSVPMH-UHFFFAOYSA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCCCCCNC(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=C(C=C3)OC)OCCC#N

IUPAC Name: 3-[[di(propan-2-yl)amino]-[6-[[(4-methoxyphenyl)-diphenylmethyl]amino]hexoxy]phosphanyl]oxypropanenitrile

InChI: InChI=1S/C35H48N3O3P/c1-29(2)38(30(3)4)42(41-28-16-25-36)40-27-15-7-6-14-26-37-35(31-17-10-8-11-18-31,32-19-12-9-13-20-32)33-21-23-34(39-5)24-22-33/h8-13,17-24,29-30,37H,6-7,14-16,26-28H2,1-5H3

Synonyms: 6-(4-Monomethoxytrityl)-hexyl-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite; N-MMT-C6 Amino Modifier; 5'-Amino C6 Modifier Amidite

Spacer Phosphoramidite 9 (BRP-02211)

Description: Spacer phosphoramidites 9 is used to insert a spacer arm in an oligonucleotide and may be added in multiple additions when a longer spacer is required.

CAT: BRP-02211

CAS: 146668-73-7

MF: C36H49N2O7P

MF: 652.77

Purity: >95% by HPLC

Appearance: Colorless to light yellow oily matter

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Storage: Store at -20 °C

Boiling Point: 672.1±55.0 °C at 760 mmHg

Symbol: Spacer-9 CE

InChIKey: PEJGGZVVBQPTRG-UHFFFAOYSA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCC#N)OCCOCCOCCOC(C1=CC=CC=C1)(C2=CC=C(C=C2)OC)C3=CC=C(C=C3)OC

IUPAC Name: 3-[2-[2-[2-[bis(4-methoxyphenyl)-phenylmethoxy]ethoxy]ethoxy]ethoxy-[di(propan-2-yl)amino]phosphanyl]oxypropanenitrile

InChI: InChI=1S/C36H49N2O7P/c1-29(2)38(30(3)4)46(44-22-10-21-37)45-28-26-42-24-23-41-25-27-43-36(31-11-8-7-9-12-31,32-13-17-34(39-5)18-14-32)33-15-19-35(40-6)20-16-33/h7-9,11-20,29-30H,10,22-28H2,1-6H3

Synonyms: 9-O-Dimethoxytrityl-triethylene glycol, 1-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite; 2-(2-(2-(bis(4-methoxyphenyl)(phenyl)methoxy)ethoxy)ethoxy)ethyl (2-cyanoethyl) diisopropylphosphoramidite; Spacer-9 CEP; Spacer-9 Phosphoramidite; 2-[2-[2-DMT]ethoxy]ethoxy]ethyl CE phosphoramidite; Phosphoramidous acid, bis(1-methylethyl)-, 2-[2-[2-[bis(4-methoxyphenyl)phenylmethoxy]ethoxy]ethoxy]ethyl 2-cyanoethyl ester; DMTr-O-Triethyleneglycol Phosphoramidite

PC Spacer Phosphoramidite (BRP-02212)

Description: PC Spacer phosphoramidite can be used as an intermediate to link any modification reagent (which can be used as phosphoramidite) to the end of the oligonucleotide. After light cleavage, 5'-phosphate is generated on the DNA, making it suitable for further biotransformation, such as gene construction and cloning after ligation.

CAT: BRP-02212

CAS: 653575-45-2

MF: C43H53N4O8P

MF: 784.88

Appearance: Off-white to yellow powder

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Storage: Store at -20 °C

Formulation: Dilute with anhydrous acetonitrile

InChIKey: KYVUUUIHEDGDBA-UHFFFAOYSA-N

CanonicalSMILES: N#CCCOP(OC(C1=CC(=CC=C1N(=O)=O)CNC(=O)CCCOC(C=2C=CC=CC2)(C3=CC=C(OC)C=C3)C4=CC=C(OC)C=C4)C)N(C(C)C)C(C)C

IUPAC Name: 1-(5-((4-(bis(4-methoxyphenyl)(phenyl)methoxy)butanamido)methyl)-2-nitrophenyl)ethyl (2-cyanoethyl) diisopropylphosphoramidite

InChI: InChI=1S/C43H53N4O8P/c1-31(2)46(32(3)4)56(54-28-12-26-44)55-33(5)40-29-34(16-25-41(40)47(49)50)30-45-42(48)15-11-27-53-43(35-13-9-8-10-14-35,36-17-21-38(51-6)22-18-36)37-19-23-39(52-7)24-20-37/h8-10,13-14,16-25,29,31-33H,11-12,15,27-28,30H2,1-7H3,(H,45,48)

Synonyms: [4-(4,4'-Dimethoxytrityloxy)butyramidomethyl)-1-(2-nitrophenyl)-ethyl]-2-cyanoethyl-(N,N-diisopropyl)-phosphoramidite; Phosphoramidous acid, N,N-bis(1-methylethyl)-, 1-[5-[[[4-[bis(4-methoxyphenyl)phenylmethoxy]-1-oxobutyl]amino]methyl]-2-nitrophenyl]ethyl 2-cyanoethyl ester; 1-[5-[[[4-[Bis(4-methoxyphenyl)phenylmethoxy]-1-oxobutyl]amino]methyl]-2-nitrophenyl]ethyl 2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite; Phosphoramidous acid, bis(1-methylethyl)-, 1-[5-[[[4-[bis(4-methoxyphenyl)phenylmethoxy]-1-oxobutyl]amino]methyl]-2-nitrophenyl]ethyl 2-cyanoethyl ester

Biotin TEG Phosphoramidite (BRP-02214)

Description: Biotin TEG Phosphoramidite incorporates a biotin label with triethylene glycol spacer, either internally or at the 5' end of an oligonucleotide. Biotin is commonly used in detection systems in conjunction with streptavidin

CAT: BRP-02214

CAS: 198080-44-3

MF: C52H76N5O11PS

MF: 1010.24

Purity: ≥95% by NMR

Appearance: Off-white Solid

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Storage: Store at -20 °C

Boiling Point: 1018.0±65.0 °C at 760 mmHg

Symbol: BIOTIN-TEG CEP

Formulation: Dilute with anhydrous acetonitrile

InChIKey: JHOFQGWLXUQCDS-MPUKHDSVSA-N

CanonicalSMILES: CC(C)N(C(C)C)P(OCCC#N)OC(COCCOCCOCCOCCCNC(=O)CCCCC1C2C(CS1)NC(=O)N2)COC(C3=CC=CC=C3)(C4=CC=C(C=C4)OC)C5=CC=C(C=C5)OC

IUPAC Name: 5-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]-N-[3-[2-[2-[2-[3-[bis(4-methoxyphenyl)-phenylmethoxy]-2-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxypropoxy]ethoxy]ethoxy]ethoxy]propyl]pentanamide

InChI: InChI=1S/C52H76N5O11PS/c1-39(2)57(40(3)4)69(67-29-12-26-53)68-46(37-66-52(41-14-8-7-9-15-41,42-18-22-44(60-5)23-19-42)43-20-24-45(61-6)25-21-43)36-65-35-34-64-33-32-63-31-30-62-28-13-27-54-49(58)17-11-10-16-48-50-47(38-70-48)55-51(59)56-50/h7-9,14-15,18-25,39-40,46-48,50H,10-13,16-17,27-38H2,1-6H3,(H,54,58)(H2,55,56,59)/t46?,47-,48-,50-,69?/m0/s1

Synonyms: 1-Dimethoxytrityloxy-3-O-(N-biotinyl-3-aminopropyl)-triethyleneglycolyl-glyceryl-2-O-(2-cyanoethyl)-(N,N-diisopropyl)-phosphoramidite; Phosphoramidous acid, bis(1-methylethyl)-, 1-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-21-[(3aS,4S,6aR)-hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-17-oxo-3,6,9,12-tetraoxa-16-azaheneicos-1-yl 2-cyanoethyl ester; Phosphoramidous acid, bis(1-methylethyl)-, 1-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-21-(hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl)-17-oxo-3,6,9,12-tetraoxa-16-azaheneicos-1-yl 2-cyanoethyl ester, [3aS-(3aα,4β,6aα)]-[partial]-; Biotin-TEG CEP; Biotin TEG amidite; Biotin TEG CE Phosphoramidite

10-O-[1-Propyl-3-N-carbamoylcholesteryl]-TEG-CE phosphoramidite (BRP-02215)

Description: 10-O-[1-Propyl-3-N-carbamoylcholesteryl]-TEG-CE phosphoramidite, an activator for viral RNA replication, is a specialized reagent used in the synthesis of modified oligonucleotides, particularly in the context of creating conjugated or functionalized nucleic acids. This reagent is particularly useful in the development of oligonucleotide-based drugs, where conjugation with lipophilic molecules like cholesterol can significantly improve the drug's performance.

CAT: BRP-02215

CAS: 1325147-19-0

MF: C46H82N3O7P

MF: 820.13

Purity: ≥95%

Appearance: Colorless oil to heavy oily matter

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Storage: Store at -20 °C

Boiling Point: 777.0±60.0 °C at 760 mmHg

InChIKey: XIXYNNLTICMGJD-CYNTUAGHSA-N

Solubility: Soluble in Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)

CanonicalSMILES: CC(C)CCCC(C)C1CCC2C1(CCC3C2CC=C4C3(CCC(C4)OC(=O)NCCCOCCOCCOCCOP(N(C(C)C)C(C)C)OCCC#N)C)C

IUPAC Name: [(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] N-[3-[2-[2-[2-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxyethoxy]ethoxy]ethoxy]propyl]carbamate

InChI: InChI=1S/C46H82N3O7P/c1-34(2)13-10-14-37(7)41-17-18-42-40-16-15-38-33-39(19-21-45(38,8)43(40)20-22-46(41,42)9)56-44(50)48-24-12-25-51-27-28-52-29-30-53-31-32-55-57(54-26-11-23-47)49(35(3)4)36(5)6/h15,34-37,39-43H,10-14,16-22,24-33H2,1-9H3,(H,48,50)/t37-,39+,40+,41-,42+,43+,45+,46-,57?/m1/s1

Synonyms: 5'-Cholesterol-TEG-CE Phosphoramidite; 10-O-[1-Propyl-3-N-carbamoylcholesteryl]-triethyleneglycol-1-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite; Cholest-5-en-3-ol (3β)-, 3-[16-[bis(1-methylethyl)amino]-19-cyano-6,9,12,15,17-pentaoxa-2-aza-16-phosphanonadecanoate]; 5'-Cholesteryl TEG phosphoramidite