2,7-Dichlorodibenzo-p-dioxin

Synonyms

2,7-Dichlorodibenzo-4-dioxin; 2,7-Dichlorodibenzodioxin; DCDD; Dibenzo(b,e)(1,4)dioxin, 2,7-dichloro-; Dibenzo-p-dioxin, 2,7-dichloro-; [ChemIDplus]

Category

Halogenated Polyaromatics

Description

Colorless solid; [HSDB] White solid; [MSDSonline]

Sources/Uses

May be present as impurity in the pesticides 2,4-D and Dicamba, resulting in occupational exposure; May also be found in fly ash particulates, municipal waste incinerator emissions, and automobile exhaust; Not commercially produced in the US; [HSDB]

Comments

IARC classification is for polychlorinated dibenzo-para-dioxins other than 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD); Polychlorodibenzodioxins have caused chloracne in humans; [HSDB] May cause chloracne, porphyria, and liver injury; [CAMEO]

Biomedical References

9E-07 mm Hg

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Yes

Chloracne

Not classifiable

Diseases

Occupational diseases associated with exposure to this agent:

• Chloracne