SMILES: C[C@H]1[C@@H](NC2=C(N1)N=C(NC2=O)N)[C@@H](C)NC3=CC=C(C=C3)C[C@@H]([C@@H]([C@@H](CO[C@@H]4[C@@H]([C@@H]([C@H](O4)COP(=O)([O-])O[C@@H](CCC(=O)[O-])C(=O)[O-])O)O)O)O)O
Description: The molecule is trianion of 5,6,7,8-tetrahydromethanopterin arising from deprotonation of carboxy and phosphate OH groups; major species at pH 7.3. It is an organophosphate oxoanion and a dicarboxylic acid dianion. It is a conjugate base of a 5,6,7,8-tetrahydromethanopterin.