2 2 2-trifluoroacetic acid July 8, 2019 16 32 64 128 2 2 2 trifluoroacetic acid cas no 2 2 2 trifluoroacetic acid cas 2 2 2-trifluoroacetic acid density 2 2 2 trifluoroacetic acid pka 2 2-difluoro-2-(fluorosulfonyl)acetic acid 2 2 2-trifluoroethyl acetate 2 2 2-trifluoroacetone 2 2 2-trifluoroethyl formate