1,3,6,8-TCDD 1,3,6,8-TETRACHLORODIBENZO-P-DIOXIN 1,3,6,8-Tetrachlorodibenzo-para-dioxin 1,3,6,8-Tetrachlorodibenzodioxin 33423-92-6 5-19-02-00041 (Beilstein Handbook Reference) BRN 1388027 Dibenzo(b,e)(1,4)dioxin, 1,3,6,8-tetrachloro- Dibenzo-p-dioxin, 1,3,6,8-tetrachloro-