... L-Leucine Molecule Formula: C6H13NO2 Molecule Weight: 131.17 Manufacture Standards: AJI92,USP26,EP4,USP29 L-LeucineIndications and UsageLeucine (abbreviated as Leu or L ... ,4. α-Isopropylmalate synthase,5. α-Isopropylmalate isomerase,6. Leucine aminotransferase.Package25kg/drum, double layers plastic bags inside.Storage SituationStored ... Keep away from moisture and strong light/heat. L-Leucine