ethyl pent-2-ynoate
Also known as: 2-Pentynoic acid ethyl ester, 2-Pentynoic acid, ethyl ester, Ethyl 2-pentynoate, ethyl pent-2-yn-1-oate, pent-2-ynoic acid ethyl ester, NSC 190964, C2H5CCCO2Et, MFCD00015221, TIMTEC-BB SBB008819
ethyl pent-2-ynoate (CAS 55314-57-3) is a compound in the Organic Acids 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 184.4±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 65.4±6.7 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H318 — Causes serious eye damage and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 55314-57-3
- Jingsj CID
- J-18479-2
- Molecular Formula
- C7H10O2
- Molecular Weight
- 126.153 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 184.4±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 65.4±6.7 °C |
| Exact Mass | 126.068077 |
| PSA | 26.30000 |
| LogP | 2.50 |
| Vapor Pressure | 0.7±0.4 mmHg at 25°C |
| Refractive Index | 1.437 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H318 — Causes serious eye damage
- H334 — May cause allergy or asthma symptoms if inhaled
Customs & Trade Information
| HS Code | 2916190090 |
|---|---|
| Summary | 2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of ethyl pent-2-ynoate?
The CAS number of ethyl pent-2-ynoate is 55314-57-3.
What are the molecular formula and molecular weight of ethyl pent-2-ynoate?
ethyl pent-2-ynoate has molecular formula C7H10O2 and molecular weight 126.153 g/mol.
Is ethyl pent-2-ynoate hazardous?
ethyl pent-2-ynoate has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H318 — Causes serious eye damage; H334 — May cause allergy or asthma symptoms if inhaled.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "ethyl pent-2-ynoate (CAS 55314-57-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18479-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.