4-Phenyl-3-butyn-2-one
4-苯基-3-丁炔-2-酮
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. It is also known as 1-Acetyl-2-phenylethyne, 1-Phenyl-1-butyn-3-one and Methyl phenylethynyl ketone. 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. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1817-57-8
- Jingsj CID
- J-1993649-1
- Molecular Formula
- C10H8O
- Chinese Name
- 4-苯基-3-丁炔-2-酮
- 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 |
GHS Safety & Compliance
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.
Data compiled from public chemical databases 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-1993649-1 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.