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:
Jun. 01, 1982
Filed:
Apr. 03, 1981
Applicant:
Inventors:
Sindhaghatta D Venkataramu, Nashville, TN (US);
Donald E Pearson, Nashville, TN (US);
Albert H Beth, Nashville, TN (US);
Assignee:
Vanderbilt University, Nashville, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546208 ;
Abstract
An improved maleimide spin label, namely, N-(.sup.15 N-oxyl-2,2,6,6-tetra-methyl-4-piperidinyl-d.sub.17) maleimide is provided for EPR spectroscopic investigations of biomedically relevant problems. Isotopic substitution of nitrogen-15 in the N--O bond and deuterium in the methyl groups (-CD.sub.3) and in all positions of the piperidine ring results in simplification of the EPR spectrum, greatly improved resolution, and a marked increase in signal intensity.