Labelled Dibenzo[a,l]pyrene (D416945). An active metabolite from inhalation and dermal exposure to polycyclic aromatics hydrocarbons in hot mix asphalt paving workers. DBC is the most potent tumorigen that has been identified to date. Dibenzo[def,p]chrysene (DBC) is a carcinogen and should be handled with appropriate caution. Melting Point: 157-159°CSolubility:Chloroform, Ethyl Acetate