The molecule is a member of molybdopterins and a molybdopterin dinucleotide. It is a conjugate acid of a molybdopterin guanine dinucleotide(3-).
[[(5aR,8R,9aR)-2-amino-4-oxo-6,7-bis(sulfanyl)-3,5,5a,8,9a,10-hexahydropyrano[3,2-g]pteridin-8-yl]methoxy-hydroxyphosphoryl] [(2R,3S,4R,5R)-5-(2-amino-6-oxo-1H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl hydrogen phosphate