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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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[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

[reference-standards] Encorafenib

Encorafenib

Product Number: C4277

CAS number: 1269440-17-6

Synonyms: LGX 818, (R)-Methyl 4-((3-(3-(5-chloro-2-fluoro-3-(methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)phenyl)amino)-3-methylbutanoate

[reference-standards] Ribociclib

Ribociclib

Product Number: C4518

CAS number: 1211441-98-3

Synonyms: LEE-011, LEE011

[reference-standards] 5-Fluorocytosine

5-Fluorocytosine

Product Number: C4825

CAS number: 2022-85-7

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