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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] Oxaprozin

Oxaprozin

Product Number: C5557

CAS number: 21256-18-8

Synonyms: 4.5-Diphenyl-2-oxazolepropanoic acid, Daypro

[reference-standards] Warfarin sodium salt

Warfarin sodium salt

Product Number: C5811

CAS number: 129-06-6

Synonyms: Coumadin sodium salt, 4-Hydroxy-3-(3-oxo-1-phenylbutyl)-2H-1-Benzopyran-2-one, sodium salt (1:1)

[metabolites] Tenofovir alafenamide

Tenofovir alafenamide

Product Number: C6620

CAS number: 379270-37-8

Synonyms: GS-7171 fumarate // [2H6]-N-[[[(1R)-2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]phenoxyphosphinyl]-1-methylethyl ester-L-alanine fumarate