Brown yellow or red brown molding powder , has weak special smell , can dissolve in water and ethanol , not dissolve in ethyl ether and chloroform , good stability , no stimulate , has strong extermination effect to bacteria , virus , epiphyte , mildew and sporule . application 由于pvpp的高分子量和交联结构，不溶于水但遇水能迅速将水引入，促使其网络结构膨胀产生崩解作用，所以pvpp是医药上广泛应用于片剂颗粒剂及胶囊剂的崩解剂填充剂。
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