Dibenz[a,j]acridine

**Semantic type:** Hazardous or Poisonous Substance

**Definition:** A yellowish aromatic hydrocarbon consisting of five fused rings formed by the incomplete burning of organic matter. Dibenz[a,j]acridine is primarily found in gasoline exhaust, petroleum refinery incinerator emissions, coal combustion emissions, cigarette smoke and coal tar pitch. This substance is used only for research purposes. Dibenz[a,j]acridine is reasonably anticipated to be a human carcinogen. (NCI05)

**Synonyms:** - 1,2,7,8-Dibenzacridine - 3,4,5,6-Dibenzacridine - 3,4,6,7-Dinaphthacridine - 7-Azadibenz(a,j)anthracene - DB(a,j)AC - DIBENZ(A,J)ACRIDINE - Dibenzo(a,j)acridine