for the following products
(2S)-2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)amino}phenyl)formamido]pentanedioic acid | (4-(((2,4-Diaminopteridin-6-yl)methyl)(methyl)amino)benzoyl)-L-glutamic acid hydrate(1:x) | Methotrexate | Methotrexate hydrate and L(+)-Amethopterin hydrate
