Photoresist Chemicals 1(3H)-Isobenzofuranone, 3-[2,2-bis[4-(diethylamino)-2-methylphenyl]ethenyl]-4,5,6,7-tetrachloro-3 -[4-(dimethylamino)phenyl]- Cas：61681-63-8 Molecular Formula：C40H43Cl4N3O2