2(5H)-Furanone, 98%

About 2(5H)-Furanone, 98%

2(5H)-Furanone is an ester carrying the CAS registry number 497-23-4 at a purity of 98%. Its molecular formula is C4H4O2 and its molecular weight is 84.07 g/mol. The IUPAC name is 2H-furan-5-one. Alternative names: γ-Crotonolactone and 2-Buten-1,4-olide.

The product is provided as a liquid. Reported physical data include a melting point of 4-5 °C and a density of 1.185 g/mL at 25 °C. Store it at 2–8 °C, in a tightly closed container. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

Typical applications include organic synthesis and API synthesis. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

We offer 2(5H)-Furanone in 1 g, 5 g, 25 g and 100 g packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	2(5H)-Furanone, 98%
Catalogue No.	VQ-008683
CAS Number	497-23-4
IUPAC name	2H-furan-5-one
Molecular formula	C₄H₄O₂
Molecular weight	84.07 g/mol
Exact mass	84.0211
Purity / assay	98%
HSN code	2932
InChIKey	VIHAEDVKXSOUAT-UHFFFAOYSA-N
SMILES	C1C=CC(=O)O1
PubChem CID	10341

Physical properties
Physical form	Liquid
Appearance	Liquid
Melting point	4-5 °C
Density	1.185 g/mL at 25 °C
LogP (XLogP3)	-0.6
H-bond donors / acceptors	0 / 2
TPSA	26.3 Å²
Storage	2–8 °C
Synonyms	γ-Crotonolactone, 2-Buten-1,4-olide, Furan-2(5H)-one, Isocrotonolactone, 2-Butenolide, 2-Oxo-2,5-dihydrofuran, 2,5-dihydrofuran-2-one, 4-Hydroxy-2-butenoic acid lactone, gamma-Crotolactone, alpha,beta-Crotonolactone, 2,5-Dihydrofuranone, delta,alpha,beta-Butenolide

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 2(5H)-Furanone, 98%?

The CAS Registry Number of 2(5H)-Furanone, 98% is 497-23-4. It is also known as γ-Crotonolactone, 2-Buten-1,4-olide, Furan-2(5H)-one.

What is the molecular formula and molecular weight of 2(5H)-Furanone, 98%?

2(5H)-Furanone, 98% has the molecular formula C4H4O2 and a molecular weight of 84.07 g/mol. Its IUPAC name is 2H-furan-5-one.

Which grade and pack sizes of 2(5H)-Furanone, 98% can I order?

We supply 2(5H)-Furanone, 98% in (98%) grade, in 1 g, 5 g, 25 g, 100 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 2(5H)-Furanone, 98%?

Yes. Every lot of 2(5H)-Furanone, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 2(5H)-Furanone, 98% be shipped internationally?

Yes. 2(5H)-Furanone, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

How should 2(5H)-Furanone, 98% be stored?

2–8 °C. Keep the container tightly closed and refer to the SDS for full handling guidance.