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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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[metabolites] 7-Hydroxymethotrexate

7-Hydroxymethotrexate

Product Number: C293

CAS number: 5939-37-7

Synonyms: 7-OHMTX, (S)-2-(4-(((2,4-Diamino-7-hydroxypteridin-6-yl)methyl)(methyl)amino)benzamido)pentanedioic acid, 4-Amino-7-hydroxy-10-methylpteroylglutamic acid, 7-Hydroxyamethopterin

[reference-standards] Belnacasan

Belnacasan

Product Number: C5851

CAS number: 273404-37-8

Synonyms: VX-765, (2S)-1-[(2S)-2-[(4-Amino-3-chlorobenzoyl)amino]-3,3-dimethylbutanoyl]-N-[(2R,3S)-2-ethoxy-5-oxooxolan-3-yl]pyrrolidine-2-carboxamide

[reference-standards] Boscalid

Boscalid

Product Number: C6368

CAS number: 188425-85-6

Synonyms: 2-Chloro-N-(4'-chlorobiphenyl-2-yl)nicotinamide, Endura, BAS 510F, Nicobifen

[reference-standards] Calcium levofolinate

Calcium levofolinate

Product Number: C6053

CAS number: 80433-71-2

Synonyms: Elvorine, Isovorin, Calcium (2S)-2-[[4-[[(6S)-2-amino-5-formyl-4-oxo-1,6,7,8-tetrahydropteridin-6-yl]methylamino]benzoyl]amino]pentanedioate

[reference-standards] DAMPA

DAMPA

Product Number: C2715

CAS number: 19741-14-1

Synonyms: 4-[[(2,4-Diamino-6-pteridinyl)methyl]methylamino]-Benzoic acid