Photoresist Chemicals Ethenylbenzene, 2-propen-1-ol, butyl 2-methyl-2-propenoate, methyl 2-methyl-2-propenoate polymer Cas:68072-42-4 Molecular Formula:Ethenylbenzene, 2-propen-1-ol, butyl 2-methyl-2-propenoate, methyl 2-methyl-2-propenoate polymer