White crystals or crystalline powder在 白色或近白色粉末,无臭、稍有特别的味道。易溶于水,盐酸和氢氧化钠溶液,微溶于乙醇,不溶于丙酮,乙醚等。
Item | Standard |
Appearance | White crystals or crystalline powder |
Specific rotation[α]20/D (C=8 in 6N HCl) | +25.5 to +27.5 Degree |
State of Solution (Transmittance) | Not less than 98.0% |
Chloride (Cl) | Not more than 0.050% |
Ammonium (NH4) | Not more than 0.02% |
Sulfate (SO4) | Not more than 0.030% |
Iron (Fe) | Not more than 30ppm |
Heavy metal(Pb) | Not more than 10ppm |
Arsenic(As2O3) | Not more than 1ppm |
Other Amino Acids | Chromatographically Not detectable |
Loss on drying | Not more than 3.0% |
Residue on ignition(sulfated) | Not more than 0.20% |
Assay | 98.5% to 101.5% |
pH | 5.5 to 7.0 |
1067:
分子式 用途及存储
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