Malathion

CAS: 121-75-5 | Type: insecticide

High Risk (Adults)

Safety Summary

Hazard Profilehazardous

Risk (Adults)High

Risk (Children)High

Risk (Dogs)Moderate To High

Risk (Cats)Moderate To High

Regulatory Status

SummaryIARC: Group 2A | California Prop 65 listed | EPA CTX / EPA OPP: Suggestive evidence of carcinogenicity

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 FormulaC10H19O6PS2

Molecular Weight330.4

Food Safety Thresholds (Baby Food)

CA_Prop65 — SubstanceNo level set (safe_harbor_level)

Governance status, not safety advice — see the full coverage-gap & legal-force matrix.

Sources

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

where to look IARC Monographs Volume 112: Malathion and Diazinon REGULATORY · 2015
US EPA Reregistration Eligibility Decision (RED) for Malathion REGULATORY · 2009
where to look ATSDR Toxicological Profile for Malathion REPORT · 2003
§ 1910.1000 Air contaminants. REGULATORY
PROPOSITION 65 LIST OF CARCINOGENS OR REPRODUCTIVE TOXICANTS REGULATORY · 2026
IARC Monographs, List of Classifications REGULATORY · 2026
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 4004) PUBCHEM
Permissible Exposure Limits – OSHA Annotated Table Z-1 REGULATORY
Industry Code of Practice on Chemicals Classification and Hazard Communication (DOSH Malaysia) 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
where to look CAMEO Chemicals, as recorded by PubChem (Experimental Properties, CID 4004; where-to-look, not a source of this value) DATABASE · 2026
EPA CompTox CTX API: predicted properties for DTXSID4020791 (Malathion) 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.

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