L-Leucine
Standard AJI92
Structural formula: C6H12O2N
Speciific rotation[α] 20d: +14.9°to +16.0°
Tansmittance: not less than 98.0%
Ammonium: not more than 0.02%
Chloride (Cl): not more than 0.02%
Sulfate (SO4): not more than 0.02%
Lron (Fe): not more than 10PPM
Heavy metals (Pb): not more than 10PPM
Arsenic (As2O3): not more than 1PPM
Other amino acid: conforms
Residue on ignition: not more than 0.10%
Loss on drying: not more than 0.20%
Assay: 99.0-100.5%
PH: 5.0 - 6.5