Synonyms: L-Leucine, Leucine, L- (8CI), (2S)-2-Amino-4-methylpentanoic acid, (S)-(+)-Leucine, (S)-2-Amino-4-methylpentanoic acid, (S)-2-Amino-4-methylvaleric acid, (S)-Leucine, L-(+)-Leucine, L-2-Amino-4-methylpentanoic acid, L-Norvaline, 4-methyl-, L-α-Aminoisocaproic acid, Leu, Leucine, Pentanoic acid, 2-amino-4-methyl-, (S)-, NSC 46709