Photoresist Chemicals 3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-[1-methyl-2-(methylsulfonyl)-1H-imidazol-5-yl ]-, bis(2-methoxyethyl) ester Cas：579488-63-4 Molecular Formula：C20H29N3O8S