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gamma-Methylene-gamma-butyrolactone

Also known as: 5-methylideneoxolan-2-one, 5-methylenedihydro-2(5H)-furanone, 5-methylenedihydrofuran-2(3H)-one, dihydro-5-methylenefuran-2(3H)-one, 4,5-dihydro-5-methylene-2(3H)-furanone, 4-pentene-4-olide, alpha'-angelica lactone, 2(3H)-furanone, dihydro-5-methylene-, MFCD00042762

gamma-Methylene-gamma-butyrolactone (CAS 10008-73-8) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C5H6O2 and a molecular weight of 98.09990 g/mol. Key properties include a melting point of 18ºC, a boiling point of 186.7ºC at 760 mmHg ,80ºC17 mm Hg(lit.), a density of 1.07 g/cm3 and a flash point of 76.7ºC. It is classified under GHS with signal word Danger and hazard statements H317 — May cause an allergic skin reaction and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
10008-73-8
Jingsj CID
J-38014-6
Molecular Formula
C5H6O2
Molecular Weight
98.09990 g/mol
Category
Esters
Last updated
8/21/2026

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Physicochemical Properties

Melting Point18ºC
Boiling Point186.7ºC at 760 mmHg ,80ºC17 mm Hg(lit.)
Density1.07 g/cm3
Flash Point76.7ºC
Exact Mass98.03680
PSA26.30000
LogP0.83710
Vapor Pressure0.654mmHg at 25°C
Refractive Indexn20/D 1.466(lit.)

GHS Safety & Compliance

Health HazardSignal word: Danger
  • H317 — May cause an allergic skin reaction
  • H334 — May cause allergy or asthma symptoms if inhaled

Customs & Trade Information

HS Code2932209090
Summary2932209090. 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 gamma-Methylene-gamma-butyrolactone?

The CAS number of gamma-Methylene-gamma-butyrolactone is 10008-73-8.

What are the molecular formula and molecular weight of gamma-Methylene-gamma-butyrolactone?

gamma-Methylene-gamma-butyrolactone has molecular formula C5H6O2 and molecular weight 98.09990 g/mol.

Is gamma-Methylene-gamma-butyrolactone hazardous?

gamma-Methylene-gamma-butyrolactone has GHS signal word Danger and hazard statements H317 — May cause an allergic skin reaction; H334 — May cause allergy or asthma symptoms if inhaled.

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

Last updated:

How to cite: Jingsj. "gamma-Methylene-gamma-butyrolactone (CAS 10008-73-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38014-6 (accessed 2026-11-06).

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