L-LEUCINE (China)

L-leucine

Appearance :White crystals or crystalline powder

Specific Rotation: +14.9° to +16.0°

State of Solution : not less than 98.0

Chloride: not more than 0.02

Ammonium : not more than 0.02

Sulfate: not more than 0.02

Iron: not more than 10ppm

Heavy Metals: not more than 10ppm

Arsenic: not more than 1ppm

Other amino acids: conforms

Loss on drying: not more than 0.02

Residue on ignition: not more than 0.10

Assay: 99.0 to100.5

pH: 5.5 to 6.5







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