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