| abstract |
The invention relates to a 4-amino-2-(2,6-dioxo-3-piperidyl)-1H-isoindole-1,3(2H)-dione polymorphic substance. The polymorphic substance is characterized by characteristic reflection in an X-ray diffraction diagram of the polymorphic substance. The invention also relates to a preparing method of the polymorphic substance, a pharmaceutical composition containing the polymorphic substance, and applications of the polymorphic substance and the pharmaceutical composition as medicine active components. |