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Dihydro-3-(tetrapropenyl)furan-2,5-dione

  • Esters
  • CAS 26544-38-7
  • IUPAC: Dihydro-3-(tetrapropenyl)furan-2,5-dione

Dihydro-3-(tetrapropenyl)furan-2,5-dione (CAS 26544-38-7) appears in 1 of the 1,812 car-care products CarCareTruth tracks (as of June 2026).

Not classified as a health hazard at the ingredient level in SDS §3 at concentrations used in finished products. No Prop 65 listing. TSCA 4(a) proposed test rules indicate EPA has flagged this compound for further testing.

Dihydro-3-(tetrapropenyl)furan-2,5-dione is an alkenylsuccinic anhydride derivative used as a dispersant and friction modifier in synthetic lubricant formulations. The tetrapropenyl side chain gives it oil solubility, while the cyclic anhydride group provides detergency and metal-surface bonding. It is used at trace concentrations (<1%) in penetrating oils and multipurpose lubricants.

The compound appears on TSCA 4(a) proposed test rules, meaning the EPA has identified data gaps and may require further toxicity testing. At the low concentrations used in finished products, no GHS health classifications are assigned to the product-level mixture on account of this ingredient.

Health & environment profile

VOC
no
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
no
Biodegradable
no
Bioaccumulative
no
Persistent
no
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
3/5
Purpose: Succinimide-type friction modifier and dispersant additive used in synthetic lubricants. Provides detergency and deposit control. The tetrapropenyl substituent indicates it is an alkenylsuccinic anhydride derivative.

Common questions about Dihydro-3-(tetrapropenyl)furan-2,5-dione

What is Dihydro-3-(tetrapropenyl)furan-2,5-dione used for in car care?
Succinimide-type friction modifier and dispersant additive used in synthetic lubricants. Provides detergency and deposit control. The tetrapropenyl substituent indicates it is an alkenylsuccinic anhydride derivative.
Is Dihydro-3-(tetrapropenyl)furan-2,5-dione a VOC?
No. Dihydro-3-(tetrapropenyl)furan-2,5-dione is not classified as a volatile organic compound (VOC).
Is Dihydro-3-(tetrapropenyl)furan-2,5-dione on California's Proposition 65 list?
No. Dihydro-3-(tetrapropenyl)furan-2,5-dione is not on California's Proposition 65 list.

1 product contain this

Related

Health and environment notes translate the manufacturer Safety Data Sheet, the GHS classification, and authoritative regulatory listings (California Prop 65, EPA). Not medical advice. They describe the ingredient itself; whether a hazard applies to a finished product depends on its concentration and how it's used.