Name

Methotrex­ate EP Impu­ri­ty E(Amethopterin EP Impu­ri­ty E)

Chem­i­cal Name

4-[[(2,4-diaminopteridin-6-yl)methyl]methylamino]-benzoic acid

Mol­e­c­u­lar Formula

C15H15N7O2

Mol­e­c­u­lar Weight

325.33200

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

19741-14-1

Appear­ance

Yel­low pow­der

Sta­bil­i­ty and Solubility

Dis­solve methanol in alka­line water (sol­vent prepa­ra­tion : 1ml of pH10 ammo­nia (2 drops of ammo­nia in 10ml of pure water) + 1ml of pH8 ammo­nia (4 drops of pH10 in 7ml of pure water) + 1ml of methanol)

Stor­age

Store at -20°C

Use

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

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