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:
May. 01, 2007
Filed:
Mar. 13, 2002
Masami Tsuda, Hiroshima, JP;
Masami Tsuda, Hiroshima, JP;
Nippon Shinyaku Co., Ltd., Kyoto, JP;
Abstract
The present invention is constituted with crystal of 2-amino-3-cyano-4-methyl-5-(2-fluorophenyl)pyrrole, which show diffraction peaks at diffraction angles (2θ±0.2 degree) of 10.3 degree, 14.3 degree, 15.5 degree, 15.9 degree, 25.1 degree and 25.7 degree in a powder X-ray diffraction spectrum, and also show absorption peaks at wavenumbers (cm, ±0.2%) of 3373, 3322, 2201, 762, 687 and 640 in an infrared absorption spectrum. The crystal of the present invention is superior in stability and is useful as a pharmaceutical bulk.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile