Photoresist Chemicals 2-Thiophenecarboxylic acid, 5-(4-morpholinylcarbonyl)-, 2-[1-[5-(3,4-dichlorophenyl)-4-hydroxy-3-thienyl]ethylidene]hydrazide Cas：921596-87-4 Molecular Formula：C22H19Cl2N3O4S2