| discovery and widespread occurrence of polyhalogenated 1,1'-dimethyl-2,2'-bipyrroles (pdbps) in marine biota. | polyhalogenated 1,1'-dimethyl-2,2'-bipyrroles (pdbps) are halogenated natural products (hnps) previously shown to bioaccumulate in marine mammals and birds. since their discovery in 1999, six hexahalogenated and a few lesser halogenated congeners have been identified in diverse marine mammal samples. here we report the identification of 17 additional hexahalogenated pdbps in the blubber extract of a humpback dolphin (sousa chinensis) from queensland, australia. thirteen of these new pdbps were a ... | 2013 | 23603470 |