質(zhì)量標(biāo)準(zhǔn):
Item
Standard
Description(外觀)
White crystals or crystalline powder
白色結(jié)晶或結(jié)晶性粉末
Loss on drying(干燥失重)
≤0.20%
Residue on ignition(灼燒殘?jiān)?
≤0.10%
pH
5.2~6.2
Chiral isomer purity(手性異構(gòu)體) ≤0.50%
Assay(含量)
99.0%-101.0%