Thiamethoxam

Safety Summary

Regulatory Status

Sources

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

• US EPA: Thiamethoxam — Interim Registration Review Decision and Bee Risk Assessment REGULATORY · 2020
• EFSA: Neonicotinoids (Imidacloprid, Clothianidin, Thiamethoxam) — Assessment of Risks to Bees (Regulation (EU) 2018/785) REGULATORY · 2018
• US EPA: Clothianidin and Thiamethoxam Proposed Interim Registration Review Decision, January 2020 REGULATORY · 2020
• 90 FR 59393 (2025-12-19) FR Doc 2025-23424: Thiamethoxam; Pesticide Tolerances REGULATORY
• where to look PubChem: Toxicity section (CID 5821911) PUBCHEM
• 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 5821911; where-to-look, not a source of this value) DATABASE · 2026
• EPA CompTox CTX API: predicted properties for DTXSID2034962 (Thiamethoxam) 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.