Photoresist Chemicals 3H-Pyrazol-3-one, 2-(3,4-dichlorophenyl)-2,4-dihydro-4-[[2-hydroxy-5-[2-(4-phenoxyphenyl) ethenyl]phenyl]methylene]-5-(1-methylethyl)- Cas：848606-32-6 Molecular Formula：C33H26Cl2N2O3