熔点 270-275 °C (dec.)(lit.)
比旋光度 -34.1 º (c=2, water, dry basis)
密度 1.29
折射率 -34 ° (C=2, H2O)
FEMA 3585
储存条件 Store at RT.
溶解度 H2O: 0.1 M at 20 °C, clear, colorless
form powder
水溶解性 1-5 g/100 mL at 25 ºC
Merck 14,7271
BRN 1910408
质量标准
99% / BR
旋光度 -33.5 - -35.0°
重金属 ≤10ppm
含水量 ≤0.20%
灼烧残渣 ≤0.10%
含量 99.0-100.5%
PH 5.4-6.0
品级Grade 非动物源，EP, JP, USP ；用于细胞培养，98.5 to 101.0%
来源origin non-animal source
外观appearance white crystalline powder
红外鉴别试验identification by ir compares to reference standard
水溶解性solubility clear colorless solution at 0.5g to 10ml of 1m hydrochloric acid
比旋光度specific rotation -33.5 to -35.0 deg (20degc/EP) -32.7 to -34.7 deg
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 ≤ 0.20%
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)
ph test 5.4 to 6.0 (1% in water)
含量assay (dry basis) 98.5 to 101.0%
内毒素endotoxin assay ≤ 1 eu/mg
细胞培养测试cell culture test pass
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