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:
Jan. 27, 1981
Filed:
Sep. 13, 1978
Applicant:
Inventor:
Akhtar Ali, Vernon Hills, IL (US);
Assignee:
Abbott Laboratories, North Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2601 / ; 2323 / ; 424-1 ; 2523 / ;
Abstract
The present invention encompasses compounds I and II, mixtures of I and II and acid addition salts thereof wherein R is hydrogen or loweralkyl having 1-3 carbon atoms, as well as compounds wherein the phenol moiety is labeled with .sup.125 I or .sup.131 I. The radiolabeled compounds are useful in radiochemical assaying for folic acid. ##STR1##