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- 白色结晶。微有鱼腥臭,具咸苦味。易潮解。易溶于水及醇,水溶液几乎呈中性,不溶于醚、石油醚、苯及二硫化碳。在碱性中不稳定。
熔点:302-305 °C
质量标准
项目ltem 分析纯
(AR)
含量Assay,%≥98%
含量(以氯计)Assay,%25.0~25.75
含量(以氮计)Assay,%9.80~10.10
水或乙醇中溶解试验Solubility in water
or ethanol 合格
灼烧残渣(以硫酸盐计)Ignition rethanol,%≤0.05
三甲基胺Trimethylamine 合格
铵盐Ammonium,% ≤0.1
重金属(以Pb计)Heavy metals,% ≤0.002
品级Grade 优级纯
(GR)
外观Appearance白色粉末
红外光谱鉴别Infrared spectrometry Conforms
纯度Purity≥99.0% (银量滴定)
熔点Melting point 302-305 °C
水溶解试验solubility in water 合格,500 mg/ml in H2O
干燥损失Drying loss ≤1.0 %
重金属Heavy metals(as Pb) ≤0.001%
铵盐Ammonium≤0.01 %
品级Grade用于细胞培养
(suitable for cell culture,>99%()
外观Appearance白色粉末
红外光谱鉴别Infrared spectrometry Conforms
纯度Purity≥99.0% (Argentmetric Titration)
熔点Melting point 302-305 °C
水溶解试验solubility in water 合格,200MG /4ML水
水分water≤0.5%(K.F)
细胞培养CELL CULTURE TEST PASS
昆虫细胞培养INSECT CELL TESTPASS
贮存:密封干燥阴凉处保存。
用途:Choline acetyltransferase substrate
A source of methyl groups for methyl-transfer reactions.
Biochem/physiol Actions Acyl group acceptor