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  • industrial

Mesulfenfos

CAS 3761-41-9

Also registered as 2 other CAS numbers

852952-67-1 · 852952-68-2

Mesulfenfos chemical structure

Concern score

Not assessed — no hazard data yet.

Mesulfenfos in plain language

What it is

Also known as Fensulfoxide · Fenthion sulfoxide · Mesulfenfos, (±)- · Mesulfenphos · O,o-dimethyl O-4-METHYLSULFINYL-M-TOLYL phosphorothioate · Fenthionsulfoxide

Show all 10 names

Mesulfenfos, (+/-)- · Mesulfenfos, (R)- · Mesulfenos · O,O-dimethyl O-(4-methylsulfinyl-m-tolyl) phosphorothioate

What it does

We don't have a plain-language description for Mesulfenfos yet.

Recorded functional uses: Degradant/impurity

Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Mesulfenfos appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Degradant/impurity.
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Degradant/impurity.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Evidence & sources

No graded research studies for Mesulfenfos yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated 2019-12-04

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Mesulfenfos in a product composition. These are source records, not Greenveil catalog products.

Named organisations

1

Typical roles

Degradant/impurity
See products using Mesulfenfos →