3-Ethyl-2-hydroxy-2-cyclopenten-1-one
Also known as: 3-Ethyl-2-hydroxy-2-cyclopenten-1-one solution, 2-Hydroxy-3-ethyl-2-cyclopenten-1-one, 2-Hydroxy-3-ethyl-2-cyclopentene-1-one, 2-hydroxy-3-ethyl-2-cyclopenten-1-on, 2-hydroxy-3-ethyl-2-cyclopentenone, 2-hydroxy-3-ethylcyclopent-2-en-1-one, 3-ETHYL-2-CYCLPENTEN-2-OL-1-ONE, 3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE, 3-Ethyl-2-cyclopenten-2-ol-1-one, 3-Ethyl-2-hydroxycyclopent-2-enone, 3-ethyl-2-hydroxy-2-cyclopenten-1-on, 3-ethyl-2-hydroxycyclopent-2-en-1-one, ethylcyclopentenolone, FEMA 3152, EINECS 244-606-5, MFCD00012391
3-Ethyl-2-hydroxy-2-cyclopenten-1-one (CAS 21835-01-8) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C7H10O2 and a molecular weight of 126.153 g/mol. Key properties include a boiling point of 258.3±40.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 107.2±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21835-01-8
- Jingsj CID
- J-26105-4
- Molecular Formula
- C7H10O2
- Molecular Weight
- 126.153 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 258.3±40.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 107.2±0.0 °C |
| Exact Mass | 126.068077 |
| PSA | 37.30000 |
| LogP | 0.83 |
| Vapor Pressure | 0.0±1.2 mmHg at 25°C |
| Refractive Index | 1.530 |
GHS Safety & Compliance
- H317 — May cause an allergic skin reaction
Customs & Trade Information
| HS Code | 2914400090 |
|---|---|
| Summary | 2914400090 other ketone-alcohols and ketone-aldehydes。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 3-Ethyl-2-hydroxy-2-cyclopenten-1-one?
The CAS number of 3-Ethyl-2-hydroxy-2-cyclopenten-1-one is 21835-01-8.
What are the molecular formula and molecular weight of 3-Ethyl-2-hydroxy-2-cyclopenten-1-one?
3-Ethyl-2-hydroxy-2-cyclopenten-1-one has molecular formula C7H10O2 and molecular weight 126.153 g/mol.
Is 3-Ethyl-2-hydroxy-2-cyclopenten-1-one hazardous?
3-Ethyl-2-hydroxy-2-cyclopenten-1-one has GHS signal word Warning and hazard statements H317 — May cause an allergic skin reaction.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Ethyl-2-hydroxy-2-cyclopenten-1-one (CAS 21835-01-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26105-4 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.