Stable labeled standards

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Alsachim's labeled standards (13C, 2H, 15N, 18O, 34S) enable you to quantify molecules for your LC-MS/MS analyses. Produced in our laboratories in France, our compounds - some of them unique - are guaranteed to be of the highest quality and purity.

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[13C5]-Pralatrexate

Product Number: C3998

CAS number: 146464-95-1 unlabeled

Synonyms: N-[4-[1-[(2,4-diamino-6-pteridinyl)methyl]-3-butyn-1-yl]benzoyl]-L-glutamic acid-13C5

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[13C,2H3]-7-Hydroxymethotrexate

Product Number: C289

CAS number: 5939-37-7 unlabeled

Synonyms: 13C-2H3-7-OHMTX, (S)-2-(4-(((2,4-Diamino-7-hydroxypteridin-6-yl)methyl)(methyl)amino)benzamido)pentanedioic acid-13C-d3, 4-Amino-7-hydroxy-10-methylpteroylglutamic acid-13C-d3, 7-Hydroxyamethopterin-13C-d3