naphthalene NAPHTHALENE Naphthalen naftalina naphthalene Naphthalin naphthalene naphtalene naftaleno An aromatic hydrocarbon comprising two fused benzene rings. It occurs in the essential oils of numerous plant species e.g. magnolia. Naphthalene NAPHTHALENE Naphthalene naphtaline naphthalenes volatile oil component ortho-fused bicyclic arene carcinogenic agent apoptosis inhibitor mouse metabolite plant metabolite environmental contaminant