Ethyl propiolate
Also known as: Ethyl propiolate, Ethyl prop-2-ynoate, Ethyl 2-propynoate, Ethyl propynoate, Propiolic acid ethyl ester, Acetylenecarboxylic acid ethyl ester, Propargylic acid ethyl ester, Ethyl acetylenecarboxylate, EPL, (Ethoxycarbonyl)acetylene, 2-Propynoic acid, ethyl ester, MFCD00009184, EINECS 210-795-8, Ethylprop-2-inoat
Ethyl propiolate (CAS 623-47-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H6O2 and a molecular weight of 98.100 g/mol. Key properties include a melting point of 9°C, a boiling point of 120.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 23.3±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 623-47-2
- Jingsj CID
- J-44765-4
- Molecular Formula
- C5H6O2
- Molecular Weight
- 98.100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 9°C |
|---|---|
| Boiling Point | 120.0±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 23.3±0.0 °C |
| Exact Mass | 98.036781 |
| PSA | 26.30000 |
| LogP | 1.42 |
| Vapor Pressure | 15.5±0.2 mmHg at 25°C |
| Refractive Index | 1.419 |
| Additional Property | miscible |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 propiolate?
The CAS number of Ethyl propiolate is 623-47-2.
What are the molecular formula and molecular weight of Ethyl propiolate?
Ethyl propiolate has molecular formula C5H6O2 and molecular weight 98.100 g/mol.
Is Ethyl propiolate hazardous?
Ethyl propiolate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Ethyl propiolate?
For Ethyl propiolate, Upstream Products: Ethanol, Propiolic acid, 2-Butyn-1-ol; Downstream Products: Ethyl 5-((tert-butoxycarbonyl)amino)pyrazolo[1,5-a]pyridine-3-carboxylate, Ethyl 3-bromoisoxazole-5-carboxylate, ethyl 3-bromo-1,2-oxazole-4-carboxylate.
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 propiolate (CAS 623-47-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44765-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.