Photoresist Chemicals TIANFUCHEM-3H-Pyrazol-3-one, 4-bromo-5-[[4-[2-(3,4-dichlorophenoxy)ethyl]-1-piperidinyl]methyl]-1-eth yl-1,2-dihydro-2-phenyl- Cas：897669-72-6 Molecular Formula：C25H28BrCl2N3O2