3,3-Dimethyldihydro-2(3H)-furanone

Also known as: 2(3H)-Furanone, dihydro-3,3-dimethyl-, 2,2-dimethyl-4-butyrolactone, 2,2-Dimethylbutyrolactone, 3,3-Dimethyl-dihydro-furan-2-one, 3,3-Dimethyltetrahydrofuran-2-one, 3,3-dimethyloxolan-2-one, α,α-Dimethyl-γ-butyrolactone, Dihydro-3,3-dimethyl-2(3H)-furanone, NSC 1094

3,3-Dimethyldihydro-2(3H)-furanone (CAS 3709-08-8) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C6H10O2 and a molecular weight of 114.142 g/mol. Key properties include a melting point of 6ºC, a boiling point of 191.5±8.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 66.9±15.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3709-08-8
Jingsj CID: J-8897-2
Molecular Formula: C₆H₁₀O₂
Molecular Weight: 114.142 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	6ºC
Boiling Point	191.5±8.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	66.9±15.9 °C
Exact Mass	114.068077
PSA	26.30000
LogP	0.27
Vapor Pressure	0.5±0.4 mmHg at 25°C
Refractive Index	1.428

Customs & Trade Information

HS Code	2932209090
Summary	2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3,3-Dimethyldihydro-2(3H)-furanone?

The CAS number of 3,3-Dimethyldihydro-2(3H)-furanone is 3709-08-8.

What are the molecular formula and molecular weight of 3,3-Dimethyldihydro-2(3H)-furanone?

3,3-Dimethyldihydro-2(3H)-furanone has molecular formula C6H10O2 and molecular weight 114.142 g/mol.

What are the upstream and downstream products of 3,3-Dimethyldihydro-2(3H)-furanone?

For 3,3-Dimethyldihydro-2(3H)-furanone, Upstream Products: 3-Methyl-2-buten-1-ol, alpha-methyl-gamma-butyrolactone, iodomethane; Downstream Products: 2,2-Dimethylglutaric acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "3,3-Dimethyldihydro-2(3H)-furanone (CAS 3709-08-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8897-2 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.