Synonyms: | HEPTACHLORODIBENZO-PARA-DIOXINS;1,2,3,4,6,7,9-HPCDD;1,2,3,4,6,7,9-CDD;1,2,3,4,6,7,9-Heptachlorodibenzo[1,4]dioxin;1,2,3,4,6,8,9-Heptachlorodibenzo-p-dioxin;1,2,3,4,6,7,9-heptachlorodibenzodioxin;1,2,3,4,6,7,9-heptachlorodibenzo-para-dioxin;1,2,3,4,6,7,9-heptachloro-dibenzo-p-dioxi |