更新時間:2016-06-10
L-半胱氨酸鹽酸鹽一水物,關于產品的Cas號、分子式、分子量、性狀、熔點等化學及物理性質,貯存、用途等具體信息,可向我們生化試劑專業銷售人員索取,紙質說明書,我們隨貨發出。
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L-半胱氨酸鹽酸鹽一水物
L-Cysteine hydrochloride monohydrate
Cas 號: 【7048-04-6】 M D L: MFCD00065606
L-半胱氨酸鹽酸鹽一水物分子式: C3H8ClNO2S.H2O;C3H7NO2S•HCl•H2O 分子量: 175.64
別 名: (R)-2-氨基-3-巰基丙酸鹽酸鹽,L-鹽酸半胱氨酸一水物,鹽酸半胱氨酸
H-Cys-OH.HCl
99% 25g
99% 100g
99% 500g
性 狀: 白色結晶體或結晶粉末。有吸濕性。在空氣中緩慢氧化和分解。溶于水、乙醇和丙酮。水溶液呈酸性。半數致死量(小鼠,腹腔)1250mg/kg。
熔點:175~178℃(分解)
[α]20D 6.0 ° (C=8.00, 1mol/L HCl)
質量標準: 含量Assay 99.0~100.5% (T)
pH 1.5~2.0
比旋光度 Specific rotation[a]D20 +5.5°~+7.0°
水溶性State of solution 無色透明
透光率(Transmittance T430) ≥98.0%
氯Chloride(Cl) 19.89~20.29%
銨根Ammonium(NH4) ≤0.02%
鐵Iron(Fe) ≤10ppm
重金屬Heavy metals(Pb) ≤10ppm
砷Arsenic(As2o3) ≤ 1ppm
其它氨基酸Other amino acids 色析法不可檢出
干燥失重Loss on drying 8.5~12.0%
灼燒殘渣Residue on ignition ≤0.10%
貯 存: 密封陰涼干燥避光保存。
用途 生化研究。鋼鐵原材料中的鈣、鎂測定。測定溶血素的還原劑。厭氧菌的生長培養和計數。 L-Cysteine Hydrochloride Monohydrate
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