The molecule is dianion of 10-formyldihydrofolic acid arising from deprotonation of both carboxylic acid functions. It is a dicarboxylic acid dianion and a member of dihydrofolates. It is a conjugate base of a 10-formyldihydrofolic acid.
(2S)-2-[[4-[(2-amino-4-oxo-7,8-dihydro-3H-pteridin-6-yl)methyl-formylamino]benzoyl]amino]pentanedioate