性质：
Red solid, m.p. 188 ~ 192 ℃ (decomposition). [Α] D23 + 175 ° ± 25 ° (C = 0.2, chloroform). UV and visible light absorption maximum (methanol): 234,252,290,498,531.5,580nm (E1cm1% 480,350,110,140,100,45). Dissolved in ethyl acetate, chloroform or ethanol, slightly soluble in water, n-hexane or petroleum ether. Acute toxicity LD50 in mice (mg / kg): 27.8 intravenously.
储存：2-8°C