Photoresist Chemicals Benzoic acid, 4-[[4-(1-methyl-4-piperidinyl)-1-piperazinyl]methyl]-, 2-(5-bromo-2-cyano-4-pyrimidinyl)-2-(cyclopentylmethyl)hydrazide 2,2,2-trifluoroacetate (1:1) Cas:928148-01-0 Molecular Formula:C29H39BrN8O.C2HF3O2