Photoresist Chemicals 3,5,8-Trioxa-4-siladecanoicacid,4-[2-ethoxy-1-(2-methylphenyl)-2-oxoethoxy]-2,6-bis(2-methylphenyl)-7-oxo-4-phenyl-,ethyl ester Cas：85905-73-3 Molecular Formula：C39H44 O9 Si