Synonyms: (S)-4,4-Difluoropyrrolidine-2-carboxylic acid coMpound with 2,2,2-trifluoroacetic acid (1:1);(S)-4,4-Difluoropyrrolidine-2-carboxylic acid 2,2,2-trifluoroacetate;(S)-4,4-Difluoropyrrolidine-2-carboxylic acid 2,2,2-trifluoroacetic acid;(S)-4,4-Difluoro-2-pyrrolidinecarboxylic Acid Trifluoroacetate