dioxin, tcdd, tetrachlorodibenzodioxin, chemical formula and structure

accident agent atomic background black cancer chemical chemistry chloracne composition compound contaminant dioxin disaster element formula genotoxic geometric herbicide illustration isolated model molecular molecule mutagenic orange organic persistent poison poisonous pollutant product research science seveso side skeletal structural structure substance tcdd tetra tetrachlorodibenzodioxin tetradioxin toxic vector vietnam war white