2,4-D (2,4-Dichlorophenoxyacetic acid)

Safety Summary

Regulatory Status

Sources

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

• IARC Monographs Volume 113: Some Organophosphate Insecticides and Herbicides — 2,4-D Group 2B Classification, NHL Epidemiology, Glyphosate Group 2A, and Agricultural Worker Cohort Studies (2015) REGULATORY · 2015
• US EPA: 2,4-D Registration Review (2005/2012) — Group D Carcinogenicity Classification, Dietary Residue Tolerances, Lawn Re-Entry Exposure Assessment, and Aquatic Life Risk Assessment REGULATORY · 2012
• § 1910.1000 Air contaminants. REGULATORY
• IARC Monographs, List of Classifications REGULATORY · 2026
• 82 FR 9523 (2017-02-07) FR Doc 2017-02477: 2,4-D; Pesticide Tolerances REGULATORY
• ECHA Annex VI to CLP: the unofficial Excel table (up to and including the 23rd ATP) (secondary: unofficial by its own statement) REGULATORY
• where to look PubChem: Toxicity section (CID 1486) PUBCHEM
• Permissible Exposure Limits – OSHA Annotated Table Z-1 REGULATORY
• Industry Code of Practice on Chemicals Classification and Hazard Communication (DOSH Malaysia) REGULATORY
• OEHHA Proposition 65 List of Carcinogens or Reproductive Toxicants (CSV, list date 31-Jul-26) REGULATORY
• where to look CAMEO Chemicals, as recorded by PubChem (Experimental Properties, CID 1486; 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 1486; where-to-look, not a source of this value) DATABASE · 2026
• EPA CompTox CTX API: predicted properties for DTXSID0020442 (2,4-D (2,4-Dichlorophenoxyacetic acid)) 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.