Photoresist Chemicals Ethanone, 1-cyclopropyl-2-(2-fluorophenyl)-2-[(3Z)-4-mercapto-3-(1,2,3-thiadiazol- 4-ylmethylene)-1-piperidinyl]-, monohydrochloride Cas:853800-53-0 Molecular Formula:C19H20FN3OS2.ClH