Photoresist Chemicals Cyclopropanecarboxylic acid, 2,2-dichloro-1-methyl-, 4-[2-[(difluoromethyl)thio]benzoyl]-1,3-dimethyl-1H-pyrazol-5-yl ester Cas:95155-36-5 Molecular Formula:C18H16Cl2F2N2O3S