4-amino-4-ethyl-7,8-dihydro-1H-pyrano(3,4-f)indolizine-3,6,10(4H)-trione*CF3CO2H

L-prolyl-L-phenylalanyl-Nim-(carboxymethyl)-L-histidine benzyl ester trifluoroacetate

phenyl 2-(2-(methylamino)ethyl)pent-4-enoate 2,2,2-trifluoroacetate

erlotinib trifluoroacetate

D-(+)-13β-ethyl-3-methoxygona-1,3,5(10)-trien-17β-yl trifluoroacetate