详情介绍
L-半胱氨酸乙酯盐酸盐
L-Cysteine ethyl ester hydrochloride
Cas 号: 【868-59-7】 M D L: MFCD00012631
L-半胱氨酸乙酯盐酸盐分子式: C5H11NO2S•HCl 分子量: 185.67
别 名: Ethyl cysteine hydrochloride
H-Cys-OEt·HCl
98% 100g
98% 500g
性 状: 白色结晶粉末。
熔点: 128 °C
[α]20D -11.5 ° (C=8, 1mol/L HCl)
质量标准: 外观Appearance 白色粉末
纯度Purity ≥98.0% (碘量滴定)
熔点Melting point 127°C - 131°C
Specific rotation [a]20/D -11.0 ~ -13.0 °(C=8, 1mol/L HCl)
干燥损失Loss on drying <0.5 %
重金属Heavy metals (as Pb) <10 ppm
灼烧残渣Res. after ign.(sulf.) <0.1 %
透光度Transmittance >98 % (c=2.5, H20, 430 nm) 1 cm cell
贮 存: 用途 用于生化试剂,医药中间体。
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