Photoresist Chemicals 1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid, 3-[[2-(acetylamino)ethyl]thio]-6,6-dimethyl-7-oxo-, diphenylmethyl ester Cas：93349-51-0 Molecular Formula：C26H28N2O4S