Compounds having improved fluorescence in fluorescence polarization immunoassays and immunoassays utilizing same
First Claim
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1. A compound of the formula:
- ##STR12## wherein F is a fluorescent group;
Y is --NH-- or a single covalent bond;
Z is straight or branched alkylene chain of two to ten carbon atoms which is substituted with at least one hydrophilic group;
Q is oxygen or sulfur; and
X is a ligand-analog capable of being recognized by an antibody specific to the corresponding ligand.
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Abstract
Compounds of the formula ##STR1## wherein F is a fluorescing compound; Y is --NH-- or a single covalent bond; Z is a straight or branched alkylene chain of 2 to 10 carbon atoms which is substituted by at least one hydrophilic group; Q is oxygen or sulfur; and X is a ligand-analog, the ligand-analog capable of being recognized by an antibody specific to the corresponding ligand. These compounds have improved properties in fluorescence polarization immunoassays by possessing either a better intensity and/or a larger span.
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Citations
13 Claims
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1. A compound of the formula:
- ##STR12## wherein F is a fluorescent group;
Y is --NH-- or a single covalent bond;
Z is straight or branched alkylene chain of two to ten carbon atoms which is substituted with at least one hydrophilic group;
Q is oxygen or sulfur; and
X is a ligand-analog capable of being recognized by an antibody specific to the corresponding ligand. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- ##STR12## wherein F is a fluorescent group;
Specification