Polymorphism of phenytoin at low temperature

Phenytoin is a simple organic pharmaceutical material that exhibits a phase transition at low temperature to a new phase. The high temperature form exhibits some unusual...苯妥英（Phenytoin）是一种简单的有机药用原料，可在低温条件下发生相变并转化为新的晶相。其高温相则表现出某些异常……