L-Leucine  CAS NO：61-90-5

Chemical Name	L-Leucine
Molecular Structure
Molecular Formula	C6H13NO2
Molecular Weight	131.17
Characteristics	White crystalling powder or white crystals.Odorless,slightly bitter taste.Freely soluble in formic acid,sparingly soluble in water,very slightly soluble in ethanol or in ether, dissoves in dilute hydrochloric acid.
Packing	25㎏/drum，25㎏/carton
Quality  Standard	AJI92/USP28/EP5/FCCIV
Specification
Specific rotation[a]D20°	+14.9～+16.0°
State of solution	≥98.0%
Heavy metals(Pb)	≤10PPm
Residue on ignition	≤0.1%
Iron(Fe)	≤10PPm
Loss on drying	≤0.2%
Other amino acids	Conforms
Arsenic(As2O3)	≤1PPm
Chloride(CI)	≤0.02%
Ammonium(NH4)	≤0.02%
Sulfate(SO4)	≤0.02%
Assay	99.0～100.5%
PH	5.5～6.5