L-Leucine

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Chemical Name:L-Leucine

Cas No.: 61-90-5

Formula: C₆H₁₃NO₂

Molecular weight: 131.17

Formula structure:

Properties:White crystal or crystalline powder, odorless, flavorless. Melting point: 293～295°C, soluble in diluted acid or alkali solution, soluble in formic acid, slightly soluble in alcohol and aether..

Quality index:

Item	Index
Purity	≥98.5%
Appearance	White crystal or crystalline powder
Specific rotatory power[α]_D²⁰	+14.5o — 16o
Identification
PH	5.5-6.5
T430	≥98.0%
Chloride[CL]	≤0.02%
Sulfate[SO₄]	≤0.02%
Ammonium salt[NH₄]	≤0.02%
Other amino acid	≤0.50%
Loss on drying	≤0.20%
Residue on ignition	≤0.10%
Heavy metal[Pb]	≤10 ppm
Arsenic salt	≤1 ppm
Iron salt[Fe]	≤10 ppm
Bacterial endotoxin	<25EU/g

Use:

Widely used in pharmaceutical industry as main material for synthesizing polypeptide drugs. Also used as antioxidant in agricultural research or preparing insect feedstuffs etc..

Packing:

Packed in cardboard drum with the lining of two layers of axenic plastic bags. NW:25 KG per drum.

Post Date:	11/7/2008
Expiry Date:	11/2/2009

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