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a crystalline hydrocarbon, C14h10, from coal tar, used in making dyes.


A dye, dye intermediate, and antiseptic precursor (for example, 9-aminoacridine, acriflavine, proflavine hemisulfate) derived from coal tar and irritating to skin and mucous membranes; a potent mutagen.
Synonym(s): dibenzopyridine


A dye molecule capable of causing a FRAME-SHIFT MUTATION in DNA by interposing between adjacent base pairs. Acridine orange stains nucleic acid so that under ultraviolet light DNA appears green and RNA appears orange.
References in periodicals archive ?
Detection of Borrelia in Acridine orange stained blood smears by fluorescence microscopy.
Wet preparation and acridine orange stain of the blood specimen showed gram-negative pleomorphic rods.