1-butyl-4-[(4-ethoxyphenyl)ethynyl]benzene

1-丁基-4-[2-(4-乙氧苯基)乙炔基]苯

Also known as: 1-(4-N-butylphenyl)-2-(4-ethoxyphenyl)acetylene, 1-n-butyl-4-[(4-ethoxyphenyl)ethynyl]benzene, 4-[(4-butylphenyl)ethynyl]phenyl ethyl ether, Benzene, 1-butyl-4-[(4-ethoxyphenyl)ethynyl]-, TOLANE 4-O2, 1-butyl-4-[2-(4-ethoxyphenyl)ethynyl]benzene

1-butyl-4-[(4-ethoxyphenyl)ethynyl]benzene (CAS 85583-83-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C20H22O and a molecular weight of 278.388 g/mol. It is also known as 1-(4-N-butylphenyl)-2-(4-ethoxyphenyl)acetylene, 1-n-butyl-4-[(4-ethoxyphenyl)ethynyl]benzene and 4-[(4-butylphenyl)ethynyl]phenyl ethyl ether. Key properties include a melting point of 54ºC, a boiling point of 405.3±38.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 197.6±22.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
85583-83-1
Jingsj CID
J-952703-6
Molecular Formula
C20H22O
Chinese Name
1-丁基-4-[2-(4-乙氧苯基)乙炔基]苯
Molecular Weight
278.388 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point54ºC
Boiling Point405.3±38.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point197.6±22.5 °C

Frequently Asked Questions

What is the CAS number of 1-butyl-4-[(4-ethoxyphenyl)ethynyl]benzene?

The CAS number of 1-butyl-4-[(4-ethoxyphenyl)ethynyl]benzene is 85583-83-1.

What are the molecular formula and molecular weight of 1-butyl-4-[(4-ethoxyphenyl)ethynyl]benzene?

1-butyl-4-[(4-ethoxyphenyl)ethynyl]benzene has molecular formula C20H22O and molecular weight 278.388 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1-butyl-4-[(4-ethoxyphenyl)ethynyl]benzene (CAS 85583-83-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-952703-6 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.