Abstract: The present invention generally relates to coumarin-based compounds that can be used for the labeling of biological molecules, as well as related synthetic and testing methods. The coumarin-based compounds typically survive conditions necessary for automated synthesis of nucleic acids without undergoing any substantial degree of degradation or alteration.

Abstract: The present invention generally relates to coumarin-based compounds that can be used for the labeling of biological molecules, as well as related synthetic and testing methods. The coumarin-based compounds typically survive conditions necessary for automated synthesis of nucleic acids without undergoing any substantial degree of degradation or alteration.

Abstract: The present invention provides a system for the improved detection of ecstasy-class compounds in biological samples. New ecstasy-class analogs are provided for detection of such ecstasy-class drugs. These analogs are compounds, or salts thereof, of a 2-amino-methylenedioxyphenyl (MDP) derivative attached to Z, where Z is a moiety capable of bonding, either directly or indirectly, with an immunogenic carrier, a detectable label, or a solid capture vehicle. Such analogs may be used to construct immunogens, enzyme or enzyme-donor conjugates, and other conjugates. The immunogens reproducibly generate antibodies with an exquisite ability to distinguish various ecstasy-class drugs in biological samples from potentially interfering substances. The specific antibodies and the conjugates may be used to distinguish and measure various ecstasy-class compounds in biological samples, such as those obtained from an individual suspected of substance abuse.

Abstract: The present invention provides a system for the improved detection of ecstasy-class compounds in biological samples. New ecstasy-class analogs are provided for detection of such ecstasy-class drugs. These analogs are compounds, or salts thereof, of a 2-amino-methylenedioxyphenyl (MDP) derivative attached to Z, where Z is a moiety capable of bonding, either directly or indirectly, with an immunogenic carrier, a detectable label, or a solid capture vehicle. Such analogs may be used to construct immunogens, enzyme or enzyme-donor conjugates, and other conjugates. The immunogens reproducibly generate antibodies with an exquisite ability to distinguish various ecstasy-class drugs in biological samples from potentially interfering substances. The specific antibodies and the conjugates may be used to distinguish and measure various ecstasy-class compounds in biological samples, such as those obtained from an individual suspected of substance abuse.

Abstract: To improve the detection of LSD, and LSD metabolites in biological samples, antibodies are raised to 2-oxo-3-hydroxy-LSD conjugated to a protein carrier. Selected antibodies are matched with an immunoassay reagent in which the 2-oxo-3-hydroxy-LSD is conjugated in the same position to a labeling or separation means. The set of reagents can be used in immunoassays for detecting or confirming the presence of LSD or LSD metabolites in a sample potentially containing interfering substances.