149635-27-8 220629-90-3 6-(Deoxyguanosin-N(2)-yl)-3-aminobenzo(a)pyrene 6-dG-NB(a)P Guanosine, N-(3-aminobenzo(a)pyren-6-yl)-2'-deoxy- N-(3-Aminobenzo(a)pyren-6-yl)-2'-deoxyguanosine