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供应 L-Leucine /61-90-5 |
规 格: |
98.5-101% |
价 格: |
1/ |
数 量: |
1 |
交货地: |
凭指定 |
发布时间: |
2015-04-16 |
有效期: |
90天 |
备 注: |
Xinjiang Fufeng Biological Technology Co.,Ltd.
Specification of L-Leucine
[CAS No.]: 61-90-5
[Molecular Weight]: 131
[Chemical Formula]: C6H13NO2
Items Specification
Description White crystals or crystalline powder
Assay 98.5%-101%
Identification(IR absorption) Corresponding to Reference Spectrum
PH 5.5-7.0
Specific Rotation[α]D20 +14.9°~+17.3°
Residue on Ignition ≤0.4%
Loss on Drying ≤0.2%
Chloride (Cl) ≤500ppm
Iron(Fe) ≤30ppm
Sulfate ( SO4) ≤300ppm
Heavy Metals ≤15ppm
Lead (Pb) ≤5ppm
Arsenic(As) ≤3ppm
Cadmium (Cd) ≤1ppm
Mercury (Hg) ≤1ppm
Total Plate Count ≤5000cfu/g
Yeast and Molds ≤100cfu/g
E.Coli Negative in 10g
Staphylococcus Aureus Negative in 10g
Salmonella Negative in 10g
Organic Volatile Impurities Meets the requirements.
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