The molecule is a derivative of folic acid in which the pteridine ring is fully reduced; it is the parent compound of a variety of coenzymes that serve as carriers of one-carbon groups in metabolic reactions. It has a role as a cofactor. It is a conjugate acid of a (6S)-5,6,7,8-tetrahydrofolate(2-).
(2S)-2-[[4-[[(6S)-2-amino-4-oxo-5,6,7,8-tetrahydro-3H-pteridin-6-yl]methylamino]benzoyl]amino]pentanedioic acid