Hexachlorobenzene (HCB)
CAS: 118-74-1 | Type: organic_pollutant
High Risk (Adults)
Safety Summary
Hazard Profilehazardous
Risk (Adults)High
Risk (Children)High
Regulatory Status
SummaryIARC: Group 2B | California Prop 65 listed | Stockholm Convention listed | EPA IRIS: Group B2 Probable Human Carcinogen
NGO listOn the TEDX List of Potential Endocrine Disruptors (The Endocrine Disruption Exchange, a non-governmental list; last updated September 2018). This is a list membership, not a regulatory classification. Source: the TEDX List export (publisher's page)
Molecular FormulaC6Cl6
Molecular Weight284.8
Sources
These citations are the ones recorded for the human adult context.
- IARC Monographs Volume 79: Some Thyrotropic Agents — Chlordane Group 2B; Heptachlor Group 2B; Hexachlorobenzene Group 2B; Mirex Group 2B; Toxaphene Group 2B (2001) REGULATORY · 2001
- Hexachlorobenzene | CASRN 118-74-1 | DTXSID2020682 | IRIS | US EPA, ORD REGULATORY
- PROPOSITION 65 LIST OF CARCINOGENS OR REPRODUCTIVE TOXICANTS REGULATORY · 2026
- IARC Monographs, List of Classifications REGULATORY · 2026
- Substances Listed in the Fifteenth Report on Carcinogens REGULATORY
- Listing of POPs in the Stockholm Convention REGULATORY
- where to look PubChem: Toxicity section (CID 8370) PUBCHEM
- Toxicological Profile for Hexachlorobenzene (ATSDR, August 2015) ASSESSMENT
- TEDX List of Potential Endocrine Disruptors, full export (Excel from the publisher's own search, operator-saved 2026-10-08; list last updated September 2018) REFERENCE_DATABASE
- where to look CAMEO Chemicals, as recorded by PubChem (Experimental Properties, CID 8370; where-to-look, not a source of this value) DATABASE · 2026
- where to look Hazardous Substances Data Bank (HSDB), as recorded by PubChem (Experimental Properties, CID 8370; where-to-look, not a source of this value) DATABASE · 2026
- EPA CompTox CTX API: predicted properties for DTXSID2020682 (Hexachlorobenzene (HCB)) REFERENCE
- ECHA Annex VI to CLP: the unofficial Excel table (up to and including the 23rd ATP) REGULATORY
Same data as the API response, which is open and needs no key. The full per-record source list is available to authenticated callers.
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