Photoresist Chemicals 3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-, ethyl 2-[4-(phenylsulfonyl)-1-piperazinyl]ethyl ester Cas：92565-39-4 Molecular Formula：C29H34N4O8S