1-Ethyl-4-[(4-methoxyphenyl)ethynyl]benzene
1-乙基-4-[(4-甲氧苯基)乙炔基]苯
Also known as: 1-(4-Ethylphenyl)-2-(4-methoxyphenyl)acetylene, 1-Ethyl-4-[2-(4-methoxyphenyl)ethynyl]benzene, 4-Methoxy-4'-ethyl-tolan, 4-[(4-Ethylphenyl)ethynyl]phenyl methyl ether, p-Methoxy-p'-ethyltolan, PTP 2O1
1-Ethyl-4-[(4-methoxyphenyl)ethynyl]benzene (CAS 63221-88-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C17H16O and a molecular weight of 236.308 g/mol. It is also known as 1-(4-Ethylphenyl)-2-(4-methoxyphenyl)acetylene, 1-Ethyl-4-[2-(4-methoxyphenyl)ethynyl]benzene and 4-Methoxy-4'-ethyl-tolan. Key properties include a melting point of 35 °C, a boiling point of 363.5±35.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 171.0±21.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 63221-88-5
- Jingsj CID
- J-21973-2
- Molecular Formula
- C17H16O
- Chinese Name
- 1-乙基-4-[(4-甲氧苯基)乙炔基]苯
- Molecular Weight
- 236.308 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 35 °C |
|---|---|
| Boiling Point | 363.5±35.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 171.0±21.7 °C |
| Exact Mass | 236.120117 |
| PSA | 9.23000 |
| LogP | 5.69 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.588 |
Customs & Trade Information
| HS Code | 2909309090 |
|---|---|
| Summary | 2909309090 other aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1-Ethyl-4-[(4-methoxyphenyl)ethynyl]benzene?
The CAS number of 1-Ethyl-4-[(4-methoxyphenyl)ethynyl]benzene is 63221-88-5.
What are the molecular formula and molecular weight of 1-Ethyl-4-[(4-methoxyphenyl)ethynyl]benzene?
1-Ethyl-4-[(4-methoxyphenyl)ethynyl]benzene has molecular formula C17H16O and molecular weight 236.308 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Ethyl-4-[(4-methoxyphenyl)ethynyl]benzene (CAS 63221-88-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21973-2 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.