1 MT2 [(3s)-3-amino-3-carboxypropyl](ethyl)methylsulfonium 1.000 2 A1LUD S-methyl-methionine 0.909 3 ESC 2-amino-4-ethyl sulfanyl butyric acid 0.909 4 MED D-methionine 0.818 5 MET Methionine 0.818 6 4CY Nitrilo-L-methionine 0.750 7 ME0 Hydroxy-L-methionine 0.750 8 MHO S-oxymethionine 0.750 9 SME Methionine sulfoxide 0.750 10 HCS 2-amino-4-mercapto-butyric acid 0.727 11 KCY D-homocysteine 0.727 12 UXS (2s)-2-amino-4-(methylsulfanyl)butan-1-ol 0.727