The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2017
Filed:
Sep. 10, 2013
Zhucheng Haotian Pharm Co., Ltd., Zhucheng, Shandong, CN;
Liping Zhu, Shandong, CN;
Liye Lu, Shanghai, CN;
Jianrong Wang, Shanghai, CN;
Linlin Sun, Shanghai, CN;
Xuefeng Mei, Shanghai, CN;
Jianxin Gu, Shanghai, CN;
Zhucheng Haotian Pharm Co., Ltd., Zhucheng, Shangdong Pro., CN;
Abstract
The present invention relates to crystalline forms of pyrroloquinoline quinone disodium salt. The present invention provides crystalline Form A and crystalline Form B of pyrroloquinoline quinone disodium salt, and the methods and uses for the preparation thereof. The X-ray powder diffraction patterns of crystalline Form A and crystalline Form B are as shown by FIG.and FIG., respectively. The crystalline forms of the present invention have low moisture absorption and high stability, as well as excellent use and storage performances.