Photoresist Chemicals Bicyclo[2.2.1]heptan-2-one, 3-[2-[3-fluoro-2-(trifluoromethyl)phenyl]-2-oxoethylidene]-1,7,7-trimethyl-, (1S,3E,4R)- Cas：918873-53-7 Molecular Formula：C19H18F4O2