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:
Aug. 28, 1984
Filed:
Feb. 01, 1982
Bruce E Babb, Rochester, NY (US);
Glen M Dappen, Webster, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
Diazonium salts which are useful in an assay for bilirubin are disclosed. The novel salts have the structural formula: ##STR1## wherein X.sup.- is a stabilizing anion, Y is CO-- or SO.sub.2 --; and R.sup.1 and R.sup.2 are independently selected from hydrogen, alkyl, aryl, carboxyalkyl and hydroxyalkyl providing R.sup.1 and R.sup.2 are not both hydrogen; R.sup.3 and R.sup.4 are independently selected from groups such that the sum of the Hammett sigma values for R.sup.3 and R.sup.4 does not exceed +0.4 or R.sup.3 and R.sup.4 represent the carbon atoms necessary to complete a fused carbocyclic ring structure. Reagent compositions, analytical elements and methods which use the described diazonium salt are also disclosed.