Photoresist Chemicals 1H-Pyrazole, 3-(4-bromophenyl)-1-[3-(2,4-difluorophenyl)-1-oxopropyl]-4,5-dihydro-4- (2-oxo-1-pyrrolidinyl)- Cas：832748-65-9 Molecular Formula：C22H20BrF2N3O2