4-Ethynyl-4'-pentylbiphenyl

4-戊基联苯乙炔

Also known as: 1,1'-Biphenyl, 4-ethynyl-4'-pentyl-, 1,1'-biphenyl,4-ethynyl-4'-pentyl, 1-ethynyl-4-(4-pentylphenyl)benzene, 4-ETHYNYL-4'-PENTYL-1,1'-BIPHENYL, 4-Ethynyl-4'-pentyl-1,1'-biphenyl, 4-Pentyl-4'-ethynyl-1,1'-biphenyl, 4-ethynyl-4'-n-pentylbiphenyl, 4-ethynyl-4'-pentylbiphenyl, 4-pentyl biphenyl acetylene

4-Ethynyl-4'-pentylbiphenyl (CAS 80563-43-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C19H20 and a molecular weight of 248.362 g/mol. It is also known as 1,1'-Biphenyl, 4-ethynyl-4'-pentyl-, 1,1'-biphenyl,4-ethynyl-4'-pentyl and 1-ethynyl-4-(4-pentylphenyl)benzene. Key properties include a boiling point of 363.2±31.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 168.9±19.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
80563-43-5
Jingsj CID
J-1365859-7
Molecular Formula
C19H20
Chinese Name
4-戊基联苯乙炔
Molecular Weight
248.362 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point363.2±31.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point168.9±19.0 °C

Frequently Asked Questions

What is the CAS number of 4-Ethynyl-4'-pentylbiphenyl?

The CAS number of 4-Ethynyl-4'-pentylbiphenyl is 80563-43-5.

What are the molecular formula and molecular weight of 4-Ethynyl-4'-pentylbiphenyl?

4-Ethynyl-4'-pentylbiphenyl has molecular formula C19H20 and molecular weight 248.362 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Ethynyl-4'-pentylbiphenyl (CAS 80563-43-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1365859-7 (accessed 2026-10-22).

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