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:
Feb. 02, 1988
Filed:
Mar. 10, 1986
Applicant:
Inventors:
Richard S Givens, Lawrence, KS (US);
Robert G Carlson, Lawrence, KS (US);
Kasturi Srinivasachar, Rockville, MD (US);
Takeru Higuchi, Lawrence, KS (US);
Osborne S Wong, Lenexa, KS (US);
Takeru Higuchi, Lawrence, US;
Assignee:
Oread Laboratories, Inc., Lawrence, KS (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
548326 ; 568440 ; 564428 ; 564 88 ; 558415 ; 562462 ; 556418 ; 560 51 ; 549433 ;
Abstract
A new class of substituted 2,3-naphthalenedicarboxaldehydes (NDA) is disclosed. Such compounds are of the formula: ##STR1## wherein one or more of R.sub.1 -R.sub.8 are various substituting groups. The above compounds react, in the presence of cyanide ion, with compounds containing primary amino groups to form adducts which exhibit a high fluorescent yield and thus are readily detected and measured by fluorometric assaying techniques.