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. 17, 1985
Filed:
Oct. 29, 1984
Applicant:
Inventor:
Nobuo Ishikawa, Yokohama, JP;
Assignee:
Daikin Kogyo Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562586 ; 2605 / ; 2605 / ;
Abstract
An optically active substance consisting of perfluoro-2-alkoxy carboxylic acid or its derivative represented by the following general formula: ##STR1## where R.sub.f and R.sub.f ' are the same or different perfluoroaliphatic groups, X is a halogen or hydroxyl group, and C is a chiral carbon atom, the above carboxylic acid or its derivative being useful for an analytical reagent for optically active compounds, such as a chiral derivatizing agent for the .sup.19 F NMR or gas chromatographic analysis.