Photoresist Chemicals 2-Propenamide, 3-[2-butyl-1-[2-(diethylamino)ethyl]-1H-benzimidazol-5-yl]-N-hydroxy-, 2,2,2-trifluoroacetate (1:1), (2E)- Cas：929016-97-7 Molecular Formula：C20H30N4O2.C2HF3O2