Photoresist Chemicals 1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid, 3-[[2-(acetylamino)ethyl]thio]-6-(2-hydroxy-1-methylethylidene)-7-oxo-, (E)- Cas:91878-09-0 Molecular Formula:C14H18N2O5S