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:
Jun. 01, 1993
Filed:
Mar. 06, 1991
Wallac Oy, Turku, FI;
Abstract
A chelate formed between Eu.sup.3+, Tb.sup.3+, Dy.sup.3+ and Sm.sup.3+ and a compound having the formula ##STR1## where A.sub.1-6 are single carbon or nitrogen atoms; n=1 or 2; R.sub.1-6 is nothing when A is a nitrogen, and hydrogen or an organic group when A is a carbon; Z and Z' are selected among --N(CH.sub.2 CH.sub.2 COO.sup.-).sub.2, --N(CH.sub.2 COO.sup.-).sub.2, --N(CH.sub.2 OPO.sub.3.sup.2-).sub.2 and --N(CH.sub.2 PO.sub.3.sup.2-).sub.2 ;--species that --X--Y is a substituent replacing a hydrogen anywhere in the parent compound; and --X--Y represents an organic group containing no chelating heteroatom closer than four atoms from a chelating heteroatom in the parent compound and X is a stable bridge containing certain groups and Y is selected from (a) specified relative groups allowing coupling to other compounds and (b) residues of compounds participating in biospecific affinity reactions.