1',2',3',4'-Tetrahydro-3,4-benzopyrene 17750-93-5 4-05-00-02592 (Beilstein Handbook Reference) 7,8,9,10-Tetrahydrobenz(a)pyrene 7,8,9,10-Tetrahydrobenzo(a)pyrene BENZO(a)PYRENE, 7,8,9,10-TETRAHYDRO- BRN 2268965