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:
Sep. 24, 2013
Filed:
Oct. 21, 2009
Soo-jin Choi, Yongin-si, KR;
Byung-goo Lee, Suwon-si, KR;
Han-kuk Lee, Yongin-si, KR;
Young-mook Lim, Seongnam-si, KR;
Wol-young Kim, Seongnam-si, KR;
Joon-hwan Lee, Yongin-si, KR;
Soo-Jin Choi, Yongin-si, KR;
Byung-Goo Lee, Suwon-si, KR;
Han-Kuk Lee, Yongin-si, KR;
Young-Mook Lim, Seongnam-si, KR;
Wol-Young Kim, Seongnam-si, KR;
Joon-Hwan Lee, Yongin-si, KR;
Daewoong Pharmaceutical Co., Ltd., Sungnam-si, KR;
Abstract
The present invention relates to a method for selectively crystallizing Z isomer of iopromide of formula (I) comprising a) dissolving a crude iopromide comprising a mixture of E and Z isomers or a concentrate thereof in an alcohol, and b) heating the resulting alcohol solution to obtain crystalline of Z isomer of iopromide; and a method for preparing a composition comprising the crystalline Z isomer of iopromide.