1,3,7,8-Tetrachlorodibenzo(b,e)(1,4)dioxin-2-ol 2-Hydroxy-1,3,7,8-tcdd 2-Hydroxy-1,3,7,8-tetrachlorodibenzo-4-dioxin 2-Hydroxy-1,3,7,8-tetrachlorodibenzo-p-dioxin 82019-03-2 Dibenzo(b,e)(1,4)dioxin-2-ol, 1,3,7,8-tetrachloro-