The molecule is an organophosphate oxoanion obtained by deprotonation of the phosphate OH groups of Mo(=O)(=S)-molybdopterin cofactor; major species at pH 7.3. It is a conjugate base of a Mo(=O)(=S)-molybdopterin cofactor.
[(5aR,8R,9aR)-2-amino-4-oxo-6,7-disulfido-3,5,5a,8,9a,10-hexahydropyrano[3,2-g]pteridin-8-yl]methyl phosphate;oxo(sulfanylidene)molybdenum(2+)