Photoresist Chemicals 3H-Pyrazol-3-one, 4-[5-[(2,4-dimethyl-5-thiazolyl)carbonyl]-3-phenyl-1,3,4-thiadiazol-2(3H)- ylidene]-2,4-dihydro-5-methyl- Cas：923928-96-5 Molecular Formula：C18H15N5O2S2