1,2,3,6,7,8-HxCDD (1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin)

Safety Summary

Regulatory Status

Sources

These citations are the ones recorded for the human adult context.

• IARC Monographs Volume 69: Polychlorinated Dibenzo- REGULATORY · 1997
• EFSA Panel on Contaminants in the Food Chain (CONTAM): Risk for Animal and Human Health Related to the Presence of Dioxins and Dioxin-Like PCBs in Feed and Food — TWI 2 pg WHO-TEQ/kg bw/week; TEF framework (WHO 2005); fatty fish, dairy, meat as primary exposure matrices (2018) REGULATORY · 2018
• Hexachlorodibenzo-p-dioxin (HxCDD), mixture of 1,2,3,6,7,8-HxCDD and 1,2,3,7,8,9-HxCDD | CASRN 57653-85-7 | DTXSID0023824 | IRIS | US EPA, ORD REGULATORY
• where to look IARC Monographs — Monographs available (index) REGULATORY · 2026
• where to look PubChem: Toxicity section (CID 42540) PUBCHEM
• Stockholm Convention: All POPs (the Convention's own list of listed chemicals, Annexes A, B and C) REGULATORY
• 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
• OEHHA Proposition 65 List of Carcinogens or Reproductive Toxicants (CSV, list date 31-Jul-26) REGULATORY
• Permissible Exposure Limits – OSHA Annotated Table Z-1 REGULATORY
• where to look Hazardous Substances Data Bank (HSDB), as recorded by PubChem (Experimental Properties, CID 42540; where-to-look, not a source of this value) DATABASE · 2026
• ATSDR Toxicological Profile for Chlorinated Dibenzo-p-Dioxins (CDDs) ASSESSMENT
• EPA CompTox CTX API: predicted properties for DTXSID0023824 (1,2,3,6,7,8-HxCDD (1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin)) REFERENCE

Same data as the API response, which is open and needs no key. The full per-record source list is available to authenticated callers.