1,2,3,4-TETRACHLORODIBENZO-P-DIOXIN 1,2,3,4-Tetrachlorodibenzo-para-dioxin 1,2,3,4-Tetrachlorodibenzodioxin 30746-58-8 5-19-02-00040 (Beilstein Handbook Reference) BRN 1323932 Dibenzo(b,e)(1,4)dioxin, 1,2,3,4-tetrachloro- Dibenzo-p-dioxin, 1,2,3,4-tetrachloro-