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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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[2H4]-Imipenem

Product Number: C1299

CAS number: 1261396-26-2

Synonyms: (5R,6S)-3-((2-Formimidamidoethyl)thio)-6-((R)-1-hydroxyethyl)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid-d4, Tienam-d4, Primaxin-d4

[reference-standards] GS-7171

GS-7171

Product Number: C6104

CAS number: 379270-36-7

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

[reference-standards] GS-7171 fumarate salt

GS-7171 fumarate salt

Product Number: C6138

CAS number: 390409-17-3

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

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[2H6]-GS-7171

Product Number: C6140

CAS number: 379270-36-7 unlabeled

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

[reference-standards] Telbivudine

Telbivudine

Product Number: C6995

CAS number: 3424-98-4

Synonyms: 2'-Deoxy-L-thymidine, Epavudine, L-Thymidine, Sebivo

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[13C,15N2]-Telbivudine

Product Number: C6996

CAS number: 3424-98-4 unlabeled

Synonyms: [13C, 15N2]-2'-Deoxy-L-thymidine, [13C, 15N2]-Epavudine, [13C, 15N2]-L-Thymidine, [13C, 15N2]-Sebivo