Methotrexate Related Compound C (50 mg) ((S)-2-(4-{[(2-amino-4-oxo-1,4-dihydropteridin-6-yl)methyl](methyl)amino}benzamido) pentanedioic acid)
Methotrexate Related Compound E (50 mg) (4-{[(2,4-Diaminopteridin-6-yl)methyl](methyl)amino}benzoic acid, hemihydrochloride)
Methotrexate Related Compound B (75 mg) ((S)-2-{4-[(2,4-diaminopteridin-6-yl)methylamino]benzamido}pentanedioic acid)
Methotrexate System Suitability Mixture (5 mg)
Methotrexate (500 mg)
R-Methotrexate (5 mg) (Sodium (R)-2-(4-{[(2,4-Diaminopteridin-6-yl)methyl](methyl)amino}benzamido)pentanedioate)
