Patent ID: 7271252

Claim:
A compound having the structure wherein Y is a saturated or unsaturated, substituted or unsubstituted, straight or branched chain of up to 20 carbon atoms: Z is an active ester, imidazole, maleimide, thiol, isothiocyanate, isocyanate, or W, where W is an immunogenic carrier or a label, wherein the label is selected from the group consisting of enzymes, enzyme fragments, radioactive isotopes, enzyme substrates, enzyme inhibitors, coenzymes, fluorogenic compounds, chemiluminescent materials, reporter groups, nucleic acids and particles, wherein the particles are organic or inorganic and from about 0.02 to about 100 microns in size; and X is selected from the group consisting of halogens, NO 2 , NH 2 , CH 3 , and OCH 3 .