The molecule is tetraanion of hydrogenobyrinic acid a,c-diamide It is a conjugate base of a hydrogenobyrinic acid a,c-diamide and a hydrogenobyrinic acid a,c-diamide(2-).
3-[(1R,2S,3S,4Z,7S,8S,9Z,13S,14Z,17R,18R,19R)-2,7-bis(2-amino-2-oxoethyl)-3,13,17-tris(2-carboxylatoethyl)-18-(carboxylatomethyl)-1,2,5,7,12,12,15,17-octamethyl-3,8,13,18,19,21-hexahydrocorrin-21-ium-8-yl]propanoate