Name

Methotrex­ate EP Impu­ri­ty C(Amethopterin EP Impu­ri­ty C)

Chem­i­cal Name

(2S)-2-[[4-[[(2-amino-4-oxo-1,4-dihydropteridin-6-yl)-methyl]methylamino]benzoyl]amino]pentanedioic acid

Mol­e­c­u­lar Formula

C20H21N7O6

Mol­e­c­u­lar Weight

455.431

CAS Num­ber (Or Wat­son Num­ber for Non-CAS Products)

59-05-220029004

Appear­ance

Yel­low pow­der

Sta­bil­i­ty and Solubility

Dis­solve in 60% methanol acid water (acid water prepa­ra­tion : add 1 drop of formic acid drop­wise to 6ml pure water, pH=2.5); easy to absorb mois­ture

Stor­age

Store at -20°C

Use

Impu­ri­ty of API Methotrex­ateThis prod­uct is devel­oped by our R&D com­pa­ny Cam­ing Phar­ma­ceu­ti­cal Ltd (https://​www​.cam​ing​.com/).

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