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:
Jan. 05, 2021
Filed:
Nov. 07, 2019
Applicant:
Zhejiang Yuejia Pharmaceuticals Co., Ltd, Deqing County, CN;
Inventor:
Jing Zhang, Shanghai, CN;
Assignee:
Zhejiang Yuejia Pharmaceuticals Co., Ltd, Deqing County, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 219/14 (2006.01); A61K 31/621 (2006.01); C07C 213/06 (2006.01);
U.S. Cl.
CPC ...
C07C 219/14 (2013.01); A61K 31/621 (2013.01); C07C 213/06 (2013.01); C07B 2200/13 (2013.01);
Abstract
A disclosed are an acetylsalicylic acid derivative, i.e. a 2-(diethylamino)ethyl 2-acetoxy-benzoate hydrochloride crystal, and a preparation method and use thereof. The X-ray powder diffraction (XRPD) pattern of the crystal has characteristic peaks at the following 2θ angle: 11.0°±0.2°, 20.6°±0.2°, 25.1°±0.2°, 8.2°±0.2°, 16.5°±0.2°, 13.4°±0.2°, 25.4°±0.2°.