Synonyms: (S)-2-{4-[(2,4-Diaminopteridin-6-yl)methylamino]benzamido}pentanedioic acid; 4-Amino-PGA; 4-Aminofolic acid; 4-Aminopteroyl-L-glutamic acid CAS Number: 54-62-6 Formula: C19H20N8O5 Formula Weight: 440.41 Linear Formula: C19H20N8O5 Storage: -20C Beilstein Registry Number: …