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  • industrial

Tetrahydrophthalic anhydride

CAS 85-43-8

Also registered as 6 other CAS numbers

27936-16-9 · 57570-09-9 · 1312159-69-5 · 1431295-16-7 · 2377923-09-4 · 2758647-50-4

Concern score

Not assessed — no hazard data yet.

Tetrahydrophthalic anhydride in plain language

What it is

Also known as 3a,4,7,7a-Tetrahydro-2-benzofuran-1,3-dione · 1,2,3,6-Tetrahydrophthalic acid anhydride · 1,2,3,6-Tetrahydrophthalsaureanhydrid · 1,2,3,6-tetrahydrophthalic anhydride · 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro- · 3a,4,7,7a-Tetrahydro-1,3-isobenzofurandione

Show all 10 names

4-CYCLOHEXEN-1,2-DICARBONSAEUREANHYDRID · 4-Cyclohexene-1,2-dicarboxylic acid anhydride · 4-Cyclohexene-1,2-dicarboxylic anhydride · Tetra hydro-phthalic anhydride

What it does

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

Recorded functional uses: Chemical reaction regulator · Hardener

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

Regulation

No restrictions found. Tetrahydrophthalic anhydride appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 5 composition records across product categories including Home maintenance. EPA CPDat classifies this chemical for functional uses including Hardener, Chemical reaction regulator.
    • EPA CPDat observed this chemical in 5 composition records across product categories including Home maintenance. EPA CPDat classifies this chemical for functional uses including Hardener, Chemical reaction regulator.Source →

Evidence & sources

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

2 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated 2019-05-01

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    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 Tetrahydrophthalic anhydride in a product composition. These are source records, not Greenveil catalog products.

Source records

5

Named organisations

3

Home maintenance

Typical roles

Chemical reaction regulatorHardener
See products using Tetrahydrophthalic anhydride →