4-Penten-1-ol
Also known as: 4-Pentenol, 4-Pentenyl alcohol, 5-Hydroxy-1-pentene, pent-4-en-1-ol, 2-Allylethyl alcohol, NSC 97503
4-Penten-1-ol (CAS 821-09-0) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C5H10O and a molecular weight of 86.132 g/mol. Key properties include a boiling point of 141.0±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 43.3±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 821-09-0
- Jingsj CID
- J-6496-0
- Molecular Formula
- C5H10O
- Molecular Weight
- 86.132 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 141.0±0.0 °C at 760 mmHg |
|---|---|
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 43.3±0.0 °C |
| Exact Mass | 86.073166 |
| PSA | 20.23000 |
| LogP | 1.02 |
| Vapor Pressure | 2.5±0.5 mmHg at 25°C |
| Refractive Index | 1.424 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
Customs & Trade Information
| HS Code | 2905290000 |
|---|---|
| Summary | 2905290000 unsaturated monohydric alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Penten-1-ol?
The CAS number of 4-Penten-1-ol is 821-09-0.
What are the molecular formula and molecular weight of 4-Penten-1-ol?
4-Penten-1-ol has molecular formula C5H10O and molecular weight 86.132 g/mol.
Is 4-Penten-1-ol hazardous?
4-Penten-1-ol has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
What are the upstream and downstream products of 4-Penten-1-ol?
For 4-Penten-1-ol, Upstream Products: 4-Pentyn-1-ol, Tetrahydrofurfuryl chloride, Tetrahydrofurfuryl alcohol; Downstream Products: 5-Hexenenitrile, 1,3-Pentadiene, N,N-Dimethyl-3-nitropyridin-2-amine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Penten-1-ol (CAS 821-09-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6496-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.