(RS)-Methotrexate

(RS)-2-[4-[[(2,4-diaminopteridin-6-yl)methyl]methylamino]benzoylamino]pentanedioic acid; C₂₀H₂₂N₈O₅ = 454.4 (60388-53-6)

Content, minimum 96.0%.

Melting point, about 195°.