... White crystalling powder or white crystals.amino acid animo acid L-LeucineMolecular structurepharmaceutical source/ Molecular Formula C6H13NO2Molecular Weight 131.17CharacteristicsWhite ... MAX Assay 99PCT-100.5PCT PH 5.5-6.5 L-Leucine, commonly known as Leucine, is known as ... through diet or supplements. Some of the foods that contain L-Leucine include eggs, fish, chicken, lentils,almonds and cashews, ...