物化性质（Physical properties）:
本品为白色或类白色结晶或粉末，本品在水中易溶，在乙醇，乙醚，三氯甲烷中几乎不溶。
This product is a white to off-white crystal or powder, freely soluble in water, insoluble in ethanol, ether and chloroform.
纯度（Purity）HPLC：≥98.0%
含量（Contents）dry basis：≥98.0%
贮藏（storage）：密封，凉暗干燥处保存。Preserve in tight, light-resistant containers, in a cool and dry place.