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供应 L-Tryptophan /73-22-3 |
规 格: |
98%-101.5% |
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: |
Specification of L-Tryptophan
[CAS No.]: 73-22-3
[Molecular Weight]:204.23
[Chemical Formula]: C11H12N2O2
Items Specification
Description White to yellow crystals or crystalline powder, tasteless, odorless
Assay 98%-101.5%
Quality Standard GB/T25734-2010
Hp 5.0-7.0
Specific Rotation -29.0°-32.8°
Loss on Drying ≤0.5%
Residual on Ignition ≤0.5%
Arsenic ≤2ppm
Heavy Metal ≤15ppm
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结构式: |
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