1,2,4,7,9-五氯二苯并[1,4]二恶英

1,2,6,8-四氯二苯并-对-二恶英

1,2,7,9-四氯二苯并[1,4]二恶英

1,2,3,4,6,8-hexachlorodibenzo-p-dioxin