Benzo[a]pyrene-1,2,3,4,5,6,7,8,9,10,11,12-d12;Benzo[a]pyrene-d12 standard solution;Benzo(a)pyrene(d12);Benzo[a]pyrene-d12;3,4-Benzopyrene-d12;442847_SUPELCO;451797_ALDRICH;AG-G-35690;Benzo[a]pyrene-d12100μg;benzo< a> pyrene-d12;dodecadeuterio-benzo[def]chOpen