4-Phenyl-3-butyn-2-one
Also known as: 4-Phenyl-3-butyn-2-one, 1-Acetyl-2-phenylethyne, 1-Phenyl-1-butyn-3-one, Methyl phenylethynyl ketone, Acetylphenylacetylene, 4-Phenylbut-3-yn-2-one, Methyl 2-phenylethynyl ketone
4-Phenyl-3-butyn-2-one (CAS 1817-57-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H8O and a molecular weight of 144.170 g/mol. Key properties include a melting point of 4°C, a boiling point of 252.9±9.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 95.0±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1817-57-8
- Jingsj CID
- J-1993649-3
- Molecular Formula
- C10H8O
- Molecular Weight
- 144.170 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 4°C |
|---|---|
| Boiling Point | 252.9±9.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 95.0±0.0 °C |
| Exact Mass | 144.057510 |
| PSA | 17.07000 |
| LogP | 2.74 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.550 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Customs & Trade Information
| HS Code | 2914399090 |
|---|---|
| Summary | 2914399090. other aromatic ketones without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Phenyl-3-butyn-2-one?
The CAS number of 4-Phenyl-3-butyn-2-one is 1817-57-8.
What are the molecular formula and molecular weight of 4-Phenyl-3-butyn-2-one?
4-Phenyl-3-butyn-2-one has molecular formula C10H8O and molecular weight 144.170 g/mol.
Is 4-Phenyl-3-butyn-2-one hazardous?
4-Phenyl-3-butyn-2-one has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
What are the upstream and downstream products of 4-Phenyl-3-butyn-2-one?
For 4-Phenyl-3-butyn-2-one, Upstream Products: Ethyl acetate, Phenylacetylene, 1-Butyn-1-ylbenzene; Downstream Products: acetic acid, benzoic acid, 1-Phenyl-1,3-butanedione.
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-Phenyl-3-butyn-2-one (CAS 1817-57-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993649-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.