Synonyms: N-(4-Methyl-2-oxo-2H-chromen-7-yl)-L-methioninamide trifluoroacetate;Acetic acid, 2,2,2-trifluoro-, compd. with (2S)-2-amino-N-(4-methyl-2-oxo-2H-1-benzopyran-7-yl)-4-(methylthio)butanamide (1:1);(2S)-2-Amino-N-(4-methyl-2-oxochromen-7-yl)-4-methylthiobutanamide, 2,2,2-trifluoroacetic acid;L-Methionine 7-amido-4-methylcoumarin trifluoroacetate salt;