Methotrexate - Impurity B (Freebase)

54-62-6

(2S)-2-[[4-[[(2,4-Diaminopteridin-6-yl)methyl]amino]benzoyl]amino]pentanedioic Acid; (4-(((2,4-Diaminopteridin-6-yl)methyl)amino)benzoyl)-L-glutamic Acid; Aminopteridine; Aminopterin; Pteramina; (2S)-2-[[4-[(2,4-Diaminopteridin-6-yl)methylamino]benzoyl]amino]pentanedioic Acid; N-[4-[[(2,4-Diamino-6-pteridinyl)methyl]amino]benzoyl]-L-glutamic Acid; 4-Aminofolic Acid, 4-Aminopteroyl-L-glutamic Acid; 4-Amino-PGA; NSC 739; N-Desmethyl Methotrexate; 4-Aminofolic Acid; Methotrexate IP Impurity B (IP); (S)-2-{4-[(2,4-Diaminopteridin-6-yl)methylamino]benzamido}pentanedioic Acid; Methotrexate Related Compound B (USP);