外观Appearance 白色或乳白色粉末
水分Water <7 % (K.F.)
重金属Heavy metals (as Pb) <20 ppm
灼烧残渣Res. after ignition 11 % - 14 %
胆酸钠sodium cholate: < 0.5% (TLC)
牛磺脱氧胆酸钠sodium taurodeoxycholate: < 0.5% (TLC)
牛磺酸taurine: < 0.5% (TLC)
其它相关性物质总量other related substances: < 0.5% (TLC)
红外光谱鉴定Infrared spectrometry 和对照品匹配
纯度Purity ≥98% (TLC)
醇溶性实验Solubility in water 溶液无色至微黄色(3% 水溶液)
比旋光度Specific rotation [a]20/D +20.0 - +26° (C=3, Water)
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