Photoresist Chemicals Furo[3,2-e][1,4]thiazepine-7,8-dicarboxylic acid, 5-(4-bromophenyl)-1-ethyl-1,5-dihydro-2,3,5-trimethyl-, 7,8-dimethyl ester Cas：923286-09-3 Molecular Formula：C22H24BrNO5S