Photoresist Chemicals 2-Propenoic acid, 2-methyl-, 2,6-dibromo-4-[1-[3,5-dibromo-4-[(1-oxo-2-propenyl)oxy]phenyl]-1-meth ylethyl]phenyl ester Cas:93620-00-9 Molecular Formula:C22H18Br4O4