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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

[reference-standards] Voriconazole

Voriconazole

Product Number: C2674

CAS number: 137234-62-9

Synonyms: (alphaR,betaS)-alpha-(2,4-Difluorophenyl)-5-fluoro-beta-methyl-alpha-(1H-1,2,4-triazol-1-ylmethyl)-4-pyrimidineethanol

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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] 5-Fluorocytosine

5-Fluorocytosine

Product Number: C4825

CAS number: 2022-85-7

Synonyms: 6-Amino-5-fluoropyrimidin-2(1H)-one, Flucytosine