Photoresist Chemicals [5-acetamido-3-(1,3-dimethyl-2,6-dioxopurin-7-yl)-6-methoxy-3,6-dihydro-2H-pyran-2-yl]methyl acetate,CAS:63064-64-2 Cas：63064-64-2 Molecular Formula：C18H23N5O7