Photoresist Chemicals 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, compd. with 1-methyl-1H-imidazole (1:1) Cas:851332-03-1 Molecular Formula:C8HF17O3S.C4H6N2