1-(4-Ethynylphenyl)ethanone
Also known as: 4-Acetylphenylacetylene, 4'-Ethynylacetophenone, 1-(4-Ethynyl-phenyl)-ethanone, 1-(4-Ethynylphenyl)ethan-1-one, Ethanone, 1-(4-ethynylphenyl)-, TIMTEC-BB SBB008828, p-Ethynylacetophenone
1-(4-Ethynylphenyl)ethanone (CAS 42472-69-5) 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 68ºC, a boiling point of 241.8±23.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 96.2±17.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 42472-69-5
- Jingsj CID
- J-1384772-8
- 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 | 68ºC |
|---|---|
| Boiling Point | 241.8±23.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 96.2±17.6 °C |
| Exact Mass | 144.057510 |
| PSA | 17.07000 |
| LogP | 1.85 |
| Appearance | Powder | Yellow |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.541 |
| Storage Conditions | 2-8°C |
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 1-(4-Ethynylphenyl)ethanone?
The CAS number of 1-(4-Ethynylphenyl)ethanone is 42472-69-5.
What are the molecular formula and molecular weight of 1-(4-Ethynylphenyl)ethanone?
1-(4-Ethynylphenyl)ethanone has molecular formula C10H8O and molecular weight 144.170 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-(4-Ethynylphenyl)ethanone (CAS 42472-69-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1384772-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.