纯度Purity                              ≥98.0% (HPLC)
纯度Purity                              ≥99.0% (TLC)
CMC (H2O):                              10-60 µM
聚合数量Aggregation Number (H2O) 　　　 155
鉴别试验Identification                  合格
pH (1% 溶液)                            5-8
水溶性试验Solubility in water，20°C    10%
电导系数Conductance (10% 溶液)          < 70 µS
荧光fluorescence （0.1% 去垢剂溶液）：  345 nm < 10%
吸光度Absorbance （1% 去垢剂溶液）:
340 nm                                  < 0.02
280 nm                                  < 0.04
260 nm                                  < 0.06
225 nm                                  < 0.1