Acridan compounds

Abstract

A chemiluminescent assay method, compositions, kits and chemiluminescent acridan compounds are described which use a two-step chemiluminescent reaction process. The reaction involves an acridan compound, preferably a derivative of an N-alkylacridan-9-carboxylic acid, which undergoes a reaction with a peroxide compound, a peroxidase enzyme and an enhancer under conditions of time, temperature and pH which permit the accumulation of an intermediate compound, which is subsequently induced to produce a burst of light by raising the pH. The result is generation of very high intensity light from the reaction. The peroxidase enzyme is present alone or linked to a member of a specific binding pair in an immunoassay, DNA probe assay or other assay where the hydrolytic enzyme is bound to a reporter molecule. The method is particularly amenable to automated assays because of the separation of the incubation and light generating steps.

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