Photoresist Chemicals Acetamide, 2-(2-benzothiazolylthio)-N-[4-(2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl- 1H-pyrazol-4-yl)-2-thiazolyl]- Cas:669008-79-1 Molecular Formula:C23H19N5O2S3