2,5-Dihydrofuran
Also known as: 3-Oxolene, 1-Oxa-3-cyclopentene, 2,5-dihydrofurane, 3,4-dihydrofuran, Dihydrofuran, Furan, 2,5-dihydro-, 2,5-DHF
2,5-Dihydrofuran (CAS 1708-29-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H6O and a molecular weight of 70.090 g/mol. Key properties include a boiling point of 69.5±29.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of -16.7±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1708-29-8
- Jingsj CID
- J-47645-9
- Molecular Formula
- C4H6O
- Molecular Weight
- 70.090 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 69.5±29.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | -16.7±0.0 °C |
| Exact Mass | 70.041862 |
| PSA | 9.23000 |
| LogP | 0.06 |
| Vapor Pressure | 145.4±0.1 mmHg at 25°C |
| Refractive Index | 1.451 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
Customs & Trade Information
| HS Code | 2932190090 |
|---|---|
| Summary | 2932190090 other compounds containing an unfused furan ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2,5-Dihydrofuran?
The CAS number of 2,5-Dihydrofuran is 1708-29-8.
What are the molecular formula and molecular weight of 2,5-Dihydrofuran?
2,5-Dihydrofuran has molecular formula C4H6O and molecular weight 70.090 g/mol.
Is 2,5-Dihydrofuran hazardous?
2,5-Dihydrofuran has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour.
What are the upstream and downstream products of 2,5-Dihydrofuran?
For 2,5-Dihydrofuran, Upstream Products: Crotonaldehyde, Allyl ether, 1,4-Anhydroerythritol; Downstream Products: (Z)-2-Buten-1-ol, 2-Hydroxytetrahydrofuran, 2,3-Dihydrofuran.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,5-Dihydrofuran (CAS 1708-29-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47645-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.