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Alsachim offers you its expertise and know-how in isotope enrichment labeling (13C, 2H, 15N, 18O, 34S) to quantify your compounds by LC-MS/MS analysis. Our teams synthesize labeled internal standards and reference standards, as well as metabolites and building blocks.

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[2H3]-Nevirapine

Product Number: C1946

CAS number: 129618-40-2 unlabeled

Synonyms: 11-Cyclopropyl-5,11-dihydro-4-methyl-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one-d4

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[13C6]-Etravirine

Product Number: C2355

CAS number: 1261392-42-0

Synonyms: 4-[[6-Amino-5-bromo-2-[(4-cyanophenyl)amino]-4-pyrimidinyl]oxy]-3,5-dimethyl-benzonitrile-13C6

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[13C6]-Rilpivirine

Product Number: C2526

CAS number: 500287-72-9 unlabeled

Synonyms: 4-[[4-[[4-[(1E)-2-Cyanoethenyl]-2,6-dimethylphenyl]amino]-2-pyrimidinyl]amino]-benzonitrile-13C6

[reference-standards] GS-7171

GS-7171

Product Number: C6104

CAS number: 379270-36-7

Synonyms: N-[[[(1R)-2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]phenoxyphosphinyl]-1-methylethyl ester-L-alanine

[reference-standards] GS-7171 fumarate salt

GS-7171 fumarate salt

Product Number: C6138

CAS number: 390409-17-3

Synonyms: N-[[[(1R)-2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]phenoxyphosphinyl]-1-methylethyl ester-L-alanine fumarate

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[2H6]-GS-7171

Product Number: C6140

CAS number: 379270-36-7 unlabeled

Synonyms: [2H6]-N-[[[(1R)-2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]phenoxyphosphinyl]-1-methylethyl ester-L-alanine

[reference-standards] Telbivudine

Telbivudine

Product Number: C6995

CAS number: 3424-98-4

Synonyms: 2'-Deoxy-L-thymidine, Epavudine, L-Thymidine, Sebivo

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[13C,15N2]-Telbivudine

Product Number: C6996

CAS number: 3424-98-4 unlabeled

Synonyms: [13C, 15N2]-2'-Deoxy-L-thymidine, [13C, 15N2]-Epavudine, [13C, 15N2]-L-Thymidine, [13C, 15N2]-Sebivo