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(2007/10/03)D-methionine
(-)-(R)-2-[(1S,5R)-(3,7-dioxo-2,4,6,8-tetraazabicyclo[3.3.0]oct-2-yl)]-4-(methylthio)butanoic acid
(+)-(R)-2-[(1R,5S)-(3,7-dioxo-2,4,6,8-tetraazabicyclo[3.3.0]oct-2-yl)]-4-(methylthio)butanoic acid
2,4-imidazolidinedione
(R)-5-(2-Methylsulfanyl-ethyl)-imidazolidine-2,4-dione