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:
Dec. 22, 1987
Filed:
Jul. 11, 1985
Spyros Theodoropulos, Yorktown Heights, NY (US);
Viomedics Inc., Worcester, MA (US);
Abstract
Novel urea derivatives of oxazine and thiazine chromophors have the structural formula I or II. ##STR1## wherein M is oxygen or sulfur, R.sub.1 and R.sub.2 are aliphatic alkyl groups or hydrogen; R.sub.3 is hydrogen or alkyl group; R.sub.4 is hydrogen, alkyl or amine group; R.sub.5 is hydrogen, amine or alkyl group; X.sup..crclbar. is an anion consisting of an organic (e.g. CH.sub.3 COO.sup..crclbar., CH.sub.3 CH.sub.2 COO.sup..crclbar. and the like) or inorganic specie (e.g. Cl.sup..crclbar., Br.sup..crclbar., I.sup..crclbar., ClO.sub.4.sup..crclbar., SO.sub.4 ', and the like); n is 0 to 20; Z is N.dbd.C.dbd.O, N.dbd.C.dbd.S, carboxylic, primary or secondary amine, and when n=0, Z may be ##STR2## wherein Q is hydroxyl, amino, carboxylic, sulfydryl, isocyanato, or isothiocyanato. The functional oxazine-urea and thiazine-urea derivatives react with compounds of interest to form adducts resulting in the fluorescent labeling of the compound.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile