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L-Leucine |
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Chemical Name: (S)-2-Amino-4-methylpentanoic acid
Molecular Formula: C6H13NO2
Molecular Weight: 131.17
Cas NO: [61-90-5]
Characteristics: White crystals or crystalline powder. Odorless, slightly bitter taste. Freely soluble in formic acid, sparingly soluble in water, very slightly soluble in ethanol or in ether, dissolves in dilute hydrochloric acid.
Quality Standards: USP24, AJI92, FCCIV and etc.
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Specification Sheet
( AJI92) |
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Expiry Period: 2 years
Packaging: 25kg/drum |
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Items |
Specifications |
Description |
White crystals or crystalline powder |
Identification |
Infrared absorption spectrum |
Assay, % |
99.0 ~ 100.5 |
Specific rotation,° |
+39.5 ~ +41.5 |
State of solution, % |
≥98.0 |
Chloride (Cl) , % |
≤0.020 |
Ammonium (NH4) , % |
≤0.02 |
Sulfate (SO4) , % |
≤0.020 |
Iron (Fe), ppm |
≤10 |
Heavy metals (Pb) , ppm |
≤10 |
Arsenic (As2O3) , ppm |
≤1 |
Other amino acids |
Conforms |
Loss on drying, % |
≤0.20 |
Residue on ignition (sulfated) , % |
≤0.10 |
PH |
5.5 ~ 6.5 |
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