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(organic chemistry)
One of a group of organic heterocyclic compounds containing a dibenzopyrrole system. Also known as 9-azafluorene.



dibenzopyrrole, a heterocyclic compound; colorless crystals that are insoluble in water and soluble in organic solvents. Melting point, 245°-247°C; boiling point, 354°-355°C. It is a weak base, forming unstable salts and acids.

Carbazole is extracted from coal tar (from anthracene oil) andis also prepared synthetically from aminodiphenyl and phe-nanthrene. It is used in the manufacture of dyes, pharmaceuti-cals, and insecticides.[11–1194–1 ]