Chlorpyrifos
CAS: 2921-88-2 | Type: insecticide
Low To Moderate Risk (Adults)
Safety Summary
Hazard Profilehazardous
Risk (Adults)Low To Moderate
Risk (Children)Moderate To High
Risk (Dogs)Moderate
Risk (Cats)Moderate To High
Regulatory Status
SummaryCalifornia Prop 65 listed | Stockholm Convention listed
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 FormulaC9H11Cl3NO3PS
Molecular Weight350.6
Sources
No citations are recorded specifically for the human adult context, so the record-wide source list is shown. It backs the record, not this particular band.
- US EPA: Chlorpyrifos — Revocation of Food Tolerances REGULATORY · 2021
- 82 FR 16581 (2017-04-05) FR Doc 2017-06777: Chlorpyrifos; Order Denying PANNA and NRDC's Petition To Revoke Tolerances REGULATORY
- identity database ECHA CHEM, Download all substances: REACH registrations (ECHA's own list of REACH-registered substances) REGULATORY · 2026
- where to look PubChem: Toxicity section (CID 2730) PUBCHEM
- NIOSH Pocket Guide to Chemical Hazards - Chlorpyrifos REGULATORY
- Computational Toxicology and Exposure APIs: Data Domains (EPA CCTE) REGULATORY
- CompTox Chemicals Dashboard: Release Notes (EPA) REGULATORY
- Stockholm Convention: The New POPs (the Convention's own index of listed chemicals) REGULATORY
- Toxicological Profile for Chlorpyrifos (ATSDR, September 1997) ASSESSMENT
- EPA ToxRefDB 3.0 point-of-departure release (pod.csv) DATABASE
- PubChem computed properties for CID 2730 (computed, not measured; as recorded by PubChem) DATABASE · 2026
- OEHHA Proposition 65 List of Carcinogens or Reproductive Toxicants (CSV, list date 31-Jul-26) REGULATORY
- Stockholm Convention on Persistent Organic Pollutants: text with Annexes (2025 English) REGULATORY
- where to look EPA ECOTOX Knowledgebase ASCII release ecotox_ascii_09_15_2026 DATABASE
- 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 2730; 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 2730; where-to-look, not a source of this value) DATABASE · 2026
- 40 CFR Part 180 (eCFR text as of 24 September 2026): § 180.342 Chlorpyrifos; tolerances for residues. REGULATORY
- EPA CompTox CTX API: predicted properties for DTXSID4020458 (Chlorpyrifos) REFERENCE
- ECHA Annex VI to CLP: the unofficial Excel table (up to and including the 23rd ATP) REGULATORY
- PubChem computed structure descriptors for CID 2730 (computed, not measured; as recorded by PubChem) DATABASE · 2026
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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