Photoresist Chemicals 1H-Pyrrole-1,2-dicarboxylic acid, 5-[[4-(acetyloxy)butyl]sulfonyl]-4-(3-methoxy-3-oxopropyl)-3-methyl-, 1-(1,1-dimethylethyl) 2-(phenylmethyl) ester Cas:850425-85-3 Molecular Formula:C28H37NO10S