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4-Ethynyl-4'-pentylbiphenyl

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. 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-1365859-8
Molecular Formula
C19H20
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
Exact Mass248.156494
LogP6.74
Vapor Pressure0.0±0.4 mmHg at 25°C
Refractive Index1.570

Customs & Trade Information

HS Code2902909090
Summary2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

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.

What are the upstream and downstream products of 4-Ethynyl-4'-pentylbiphenyl?

For 4-Ethynyl-4'-pentylbiphenyl, Upstream Products: 1-Bromopentane, 4-Bromobiphenyl, 4-pentyl-4'-iodobiphenyl.

Data compiled from public chemical databases such as PubChem 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-1365859-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.