Acridines

Acridine is an organic compound and a nitrogen heterocycle with the formula C13H9N. Acridines are substituted derivatives of the parent ring. It is a planar molecule that is structurally related to anthracene with one of the central CH groups replaced by nitrogen. Like the related molecules pyridine and quinoline, acridine is mildly basic. It is an almost colorless solid, which crystallizes in needles. There are few commercial applications of acridines; at one time acridine dyes were popular, but they are now relegated to niche applications, such as with acridine orange. The name is a referenc

Mepacrine, also called quinacrine or by the trade names Atabrine or Atebrin, is a medication with several uses. It is related to chloroquine and mefloquine. Although available from compounding pharmacies, as of August 2020 approved formulations are not available in the United States.

Proflavine, also called proflavin and diaminoacridine, is an acriflavine derivative, a disinfectant bacteriostatic against many gram-positive bacteria. It has been used in the form of the dihydrochloride and hemisulfate salts as a topical antiseptic, and was formerly used as a urinary antiseptic.

Quinacridone is an organic compound used as a pigment. Numerous derivatives constitute the quinacridone pigment family, which finds extensive use in industrial colorant applications such as robust outdoor paints, inkjet printer ink, tattoo inks, artists' watercolor paints, and color laser printer toner. As pigments, the quinacridones are insoluble. The development of this family of pigments supplanted the alizarin dyes.

pair of enantiomers

9-Aminoacridine is a synthetic dye used clinically as a topical antiseptic and experimentally as a mutagen, an intracellular pH indicator and a small molecule MALDI matrix.

Acridone is an organic compound based on the acridine skeleton, with a carbonyl group at the 9 position.

Lucigenin is an aromatic compound used in areas which include chemiluminescence. Its chemical name is bis-N-methylacridinium nitrate. It exhibits a bluish-green fluorescence.

3-Aminoacridine is an aminoacridine.

2-Aminoacridine is an aminoacridine.

4-Aminoacridine is an aminoacridine.

Amsacrine (synonyms: m-AMSA, acridinyl anisidide) is an antineoplastic agent.