1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin
1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin (1,2,3,7,8,9-HxCDD) is a polychlorinated dibenzodioxin. 1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin combined with 1,2,3,6,7,8-hexachlorodibenzo-p-dioxin induces the formation of liver adenomas or carcinomas in rats.