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The wide portfolio of Alsachim's reference standards covers a broad range of applications: pharmaceutical, environmental analysis, food and beverages, doping, toxicology and forensic analysis. 

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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] Sildenafil citrate salt

Sildenafil citrate salt

Product Number: C2784

CAS number: 171599-83-0

Synonyms: 5-[2-Ethoxy-5-[(4-methyl-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one 2-hydroxy-1,2,3-propanetricarboxylate

[metabolites] 5-Methylurapidil

5-Methylurapidil

Product Number: C6736

CAS number: 34661-85-3

Synonyms: 5-Methyl-6[[3-[4-(2-methoxyphenyl)-1-piperazinyl]­propyl]­amino]-1,3-dimethyluracil

[reference-standards] Floxuridine

Floxuridine

Product Number: C6050

CAS number: 50-91-9

Synonyms: 5-FUdR, 5-Fluorodeoxyuridine, 5-Fluoro-1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione

[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