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:
Apr. 07, 1998
Filed:
Oct. 22, 1996
Applicant:
Inventors:
Assignee:
Daicel Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436173 ;
Abstract
A chiral shift reagent for .sup.1 H-NMR and .sup.13 C-NMR, starting materials are easily available, synthesis is easy and of which performance is excellent, is provided. A chiral shift reagent for NMR comprising a saccharide derivative, and an analytical method which comprises measuring an NMR spectrum of an optical isomer mixture or an optically active substance in the presence of such a chiral shift reagent to analyze the mixing ratio of the optical isomers or the optical purity and absolute configuration of the optically active substance on the basis of the spectrum.