Solubility: Freely soluble in ethanol 70%, the solution may show an opalescenceAcidity : neutral to litmusOptical rotation : (-) 12 to 18 deg.

• 溶性：易溶于70%25酒精，溶液可能呈乳白色。酸性：石蕊测试为中性旋光度：（-）12至18度。