Agent Name

Heptachlorodibenzo-p-dioxin

CAS Number

35822-46-9

Formula

C12-H-Cl7-O2

Major Category

Other Classes

Synonyms

1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin; 1,2,3,4,6,7,8-Heptachlorodibenzo-para-dioxin; 1,2,3,4,6,7,8-Heptachlorodibenzodioxin; 1,2,3,4,6,7,8-Heptapolychlorinated dibenzo-p-dioxin; Dibenzo(b,e)(1,4)dioxin, 1,2,3,4,6,7,8-heptachloro-; 1,2,3,4,6,7,8-Heptachlorodibenzo(b,e)(1,4)dioxin; [ChemIDplus] UN2811

Category

Halogenated Polyaromatics

Description

Off-white solid; [CAMEO] White crystalline solid; [MSDSonline]

Sources/Uses

Contaminant of pentachlorophenol; [ChemIDplus]

Comments

May cause chloracne; [HSDB] An eye irritant; Can be absorbed through skin; May cause chloracne and liver injury; [CAMEO] See "Dibenzo-p-dioxin" and "2,3,7,8-Tetrachlorodibenzo-p-dioxin."

Exposure Assessment
Vapor Pressure

7.5E-10 mm Hg

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Toxic solid, organic, n.o.s."

Adverse Effects
Hepatotoxin

Hepatotoxin, Secondary

Dermatotoxin

Chloracne

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: