1,2,3,7-TCDD;1,2,3,7-Tetrachlorodibenzo[1,4]dioxin;1,2,3,7-Tetrachlorodibenzo[b,e][1,4]dioxin;1,2,3,7-Tetrachlorodibenzodioxin;1,2,3,7-Tetrachlorodibenzo-p-dioxin
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