Photoresist Chemicals 1-Piperidinecarboxylic acid, 4-[2-[bis(methylsulfonyl)amino]-1-[4-(1H-indol-3-yl)-1-piperidinyl]ethyl]-, 1,1-dimethylethyl ester Cas：881018-76-4 Molecular Formula：C27H42N4O6S2