The molecule is a dicarboxylic acid anion arising from deprotonation of both carboxylic acid functions of 5,6,7,8-tetrahydrofolic acid; major structure at pH 7.3 It is a tetrahydrofolate and a dicarboxylic acid dianion. It is a conjugate base of a 5,6,7,8-tetrahydrofolic acid.
(2S)-2-[[4-[(2-amino-4-oxo-5,6,7,8-tetrahydro-3H-pteridin-6-yl)methylamino]benzoyl]amino]pentanedioate