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CarCareTruth

Furan-2,5-dione, dihydro-, monopolyisobutylene derivatives

  • Esters
  • CAS 67762-77-0
  • IUPAC: Dihydro-3-(tetrapropenyl)furan-2,5-dione

Furan-2,5-dione, dihydro-, monopolyisobutylene derivatives (CAS 67762-77-0) appears in 1 of the 2,122 car-care products CarCareTruth tracks (as of August 2026).

Classified Eye Irrit. 2A (H319) at the ingredient level in SDS §3 of aerosol penetrating-lubricant formulations. No skin, inhalation, or systemic hazard classification at the concentration used. Not Prop 65 listed.

Dihydro-3-(tetrapropenyl)furan-2,5-dione (CAS 67762-77-0) is a tetrapropenyl-substituted succinic anhydride used as a corrosion-inhibiting, metal-wetting additive in aerosol penetrating lubricants. The oil-soluble tetrapropenyl chain carries the reactive anhydride ring to the metal surface, where it helps displace surface moisture and leaves a thin protective film that resists new rust formation between applications.

It is closely related to, but a distinct CAS registration from, other tetrapropenyl/polyisobutenyl succinic anhydride derivatives used elsewhere in the CCT catalog as lubricant dispersants. At the 1-5% concentration typical of penetrating-oil formulations, the ingredient-level classification is limited to eye irritation (H319); it does not carry a skin, respiratory, or aquatic hazard classification in the product SDS.

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: Corrosion inhibitor and metal-wetting additive at 1-5% in aerosol penetrating lubricants; the anhydride ring bonds to metal surfaces to displace moisture and resist re-rusting

Common questions about Furan-2,5-dione, dihydro-, monopolyisobutylene derivatives

What is Furan-2,5-dione, dihydro-, monopolyisobutylene derivatives used for in car care?
Corrosion inhibitor and metal-wetting additive at 1-5% in aerosol penetrating lubricants; the anhydride ring bonds to metal surfaces to displace moisture and resist re-rusting
Is Furan-2,5-dione, dihydro-, monopolyisobutylene derivatives a VOC?
No. Furan-2,5-dione, dihydro-, monopolyisobutylene derivatives is not classified as a volatile organic compound (VOC).
Is Furan-2,5-dione, dihydro-, monopolyisobutylene derivatives on California's Proposition 65 list?
No. Furan-2,5-dione, dihydro-, monopolyisobutylene derivatives 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.