Photoresist Chemicals 8-[3-(1,3-dimethyl-6-oxo-2-sulfanylidene-7H-purin-8-yl)propyl]-1,3-dimethyl-2-sulfanylidene-7H-purin-6-one,CAS:6466-29-1 Cas：6466-29-1 Molecular Formula：C17H20 N8 O2 S2