The chemical L-Leucine has a designated molecular formula of C6H13NO2 and a molecular weight of 131.175 g/mol. Synonyms may include: Leucine, AI3-08899, L-alpha-Aminoisocaproic acid, L-(-)-2-Amino-4-methylpentanoic acid, (S)-2-Amino-4-methylpentanoic acid, 2-Amino-4-methylpentanoic acid, (S)-, (S)-2-Amino-4-methylvaleric acid, EINECS 200-522-0, FEMA No. 3297, Leu, Leucin [German], Leucina [INN-Spanish] (ChemID).