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. 21, 1986
Filed:
Nov. 14, 1983
Michael J Malin, Park Ridge, NJ (US);
Bernard Loev, Scarsdale, NY (US);
Deng R Hwang, Tarrytown, NY (US);
Technicon Instruments Corporation, Tarrytown, NY (US);
Abstract
New phthalocyanin derivatives which can be used to differentiate basophils from other blood cells are disclosed. The compounds to which the present invention are quaternary salts of a substituted phthalocyanin structure wherein the substitutions are each independently hydrogen, sulfonate, or a C.sub.1 -C.sub.7 hydrocarbon, optionally containing at least one heteroatom, with the proviso that at least one of them is ##STR1## in which R.sub.1 -R.sub.3 are each independently lower alkyls, cycloalkyls or olefins of which at least one is C.sub.2 -C.sub.4 and two may join to form a ring; R.sub.4 is hydrogen or a C.sub.1 -C.sub.3 alkyl; n is an integer from 1 to 6; M is a polyvalent metal ion. It is preferred that at least two and especially at least three substitutions have the structure so set forth.