2-Hydroxy-3,7,8-trichlorodd 2-Hydroxy-3,7,8-trichlorodibenzo-4-dioxin 2-Hydroxy-3,7,8-trichlorodibenzo-p-dioxin 3,7,8-Trichlorodibenzo(b,e)(1,4)dioxin-2-ol 82019-04-3 Dibenzo(b,e)(1,4)dioxin-2-ol, 3,7,8-trichloro-