It is a white to pale yellow, odourless or almost odourless, crystalline powder. Practically insoluble in water; soluble 1 in 50 in alcohol, 1 in 50 in chloroform; slightly soluble in ether.

• 这是一个白色淡黄,无气味或几乎无气味,水晶粉末。几乎不能溶解在水中;可溶物1在50在酒精里,1在50在三氯甲烷里;轻微地可溶解在以乙醚里。