PCB-126 (3,3',4,4',5-Pentachlorobiphenyl)

Safety Summary

Regulatory Status

Sources

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

• IARC Monographs Volume 100F: Chemical Agents and Related Occupations — Polychlorinated Biphenyls (PCBs) Group 1; dioxin-like PCBs including PCB-126 and PCB-169 as key congeners; occupational and dietary exposure assessment (2012) REGULATORY · 2012
• 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
• IARC Monographs, List of Classifications REGULATORY · 2026
• where to look PubChem: Toxicity section (CID 63090) PUBCHEM
• Stockholm Convention: All POPs (the Convention's own list of listed chemicals, Annexes A, B and C) REGULATORY
• OEHHA Proposition 65 List of Carcinogens or Reproductive Toxicants (CSV, list date 31-Jul-26) REGULATORY
• EPA CompTox CTX API: predicted properties for DTXSID3032179 (PCB-126 (3,3',4,4',5-Pentachlorobiphenyl)) 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.