"aromatic hydrocarbon"@en-us . . . "14767996-n"^^ . "0"^^ . . . . . "114767996"^^ . "0"^^ . "113925570"@en-us . "aromatic hydrocarbon"^^ . . . . "a hydrocarbon that contains one or more benzene rings that are characteristic of the benzene series of organic compounds"@en-us .