α-Hydroxy-γ-butyrolactone

Also known as: 3-Hydroxydihydro-2(3H)-furanone, 3-Hydroxytetrahydrofuran-2-one, 2-Hydroxy-γ-butyrolactone, Dihydro-3-hydroxy-2(3H)-furanone, 4,5-Dihydro-3-hydroxy-2(3H)-furanone, AKOS 224, MFCD00134268, UNII:L5D4QZ05QR

α-Hydroxy-γ-butyrolactone (CAS 19444-84-9) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C4H6O3 and a molecular weight of 102.089 g/mol. Key properties include a boiling point of 249.3±0.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 122.1±13.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19444-84-9
Jingsj CID: J-10771-6
Molecular Formula: C₄H₆O₃
Molecular Weight: 102.089 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	249.3±0.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	122.1±13.2 °C
Exact Mass	102.031693
PSA	46.53000
LogP	-1.83
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.506

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 α-Hydroxy-γ-butyrolactone?

The CAS number of α-Hydroxy-γ-butyrolactone is 19444-84-9.

What are the molecular formula and molecular weight of α-Hydroxy-γ-butyrolactone?

α-Hydroxy-γ-butyrolactone has molecular formula C4H6O3 and molecular weight 102.089 g/mol.

What are the upstream and downstream products of α-Hydroxy-γ-butyrolactone?

For α-Hydroxy-γ-butyrolactone, Upstream Products: DL-Malic acid, 1,3-Dioxolane, acrylic acid methyl ester; Downstream Products: 2(5H)-Furanone, (R)-malic acid, 2-Hydroxy-4-(methylthio)butyric 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. "α-Hydroxy-γ-butyrolactone (CAS 19444-84-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10771-6 (accessed 2026-11-06).

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