99%:
外观Appearance 白色结晶粉末
红外光谱鉴别Infrared spectrometry 和对照品匹配
纯度Purity >99.0% (以干基计)
干燥损失Loss on drying <0.5 % (1 g, 105°C)
重金属Heavy metals (as Pb) <10 ppm
硫酸盐灰分Sulfated ash <0.1 %
比旋度Specific rotation [a]20/D -9.8° ~ -12.3°(c=5)
(稀盐酸/H2O : 50/50) 以无水物计
Cl < 400 ppm
SO4 < 300 ppm
NH4 < 200 ppm
Fe < 10 ppm
来源origin 动物毛发提前
品级Grade 非动物源,EP, JP, USP ;用于细胞培养,99.0 - 101.0 %
(from non-animal source, EP, JP, USP, for cell culture, 99 to 101.0%)
来源origin non-animal source
外观appearance White to Off-White Crystalline Powder
红外鉴别试验identification by ir compares to reference standard
水溶性Solubility Colorless Clear,0.5 g to 20 mL, 1 M HCl
比旋光度specific rotation -12.1 - -11.3 °
C = 5 in 1 M HCl (20 Deg C/EP)
氯chloride ≤ 0.020%
铵ammonium ≤ 0.02%
硫酸盐sulfate ≤ 0.020%
铁iron ≤ 10 ppm
重金属heavy metals ≤ 10 ppm
砷arsenic ≤ 1 ppm
干燥失重loss on drying ≤ 0.10%
灼烧残渣residue on ignition ≤ 0.10%
残留溶剂residual solvents meets the requirements
茚三酮阳性物质ninhydrin-positive substances (other amino acids)
conforms
含量assay (dry basis) 99.0 - 101.0 %
内毒素endotoxin assay ≤ 1 eu/mg
细胞培养测试cell culture test pass |
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