Benzo[pqr]tetraphene;3,4-benz[a]pyrene;3,4-Benzopyrene;3,4-Benzpyrene;3,4-benzylpyrene;3,4-BP;6,7-Benzopyrene;B[A]P;Benzo[d,e,f]chrysene;Benzpyrene;Benzo[a]pyrene;3,4-Benzopyrene (purified by sublimation);3,4-Benzopyrene solution;Benzo(a)pyrene;Benzo(a)pyOpen