Photoresist Chemicals Oxazolium,2-[(1S)-1-cyclopropyl-2-phenylethyl]-4,5-dihydro-3,4-dimethyl-5-phenyl-,(4S,5R)-, 1,1,1-trifluoromethanesulfonate (1:1) Cas：925675-14-5 Molecular Formula：C22H26NO.CF3O3S