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4-Ethoxyphenylacetylene

Also known as: 1-ethoxy-4-ethynylbenzene, 1-ethoxy-4-eth-1-ynylbenzene, 1-ethynyl-4-ethoxybenzene, 4-ethoxy-1-ethynylbenzene, 4-ethoxyphenylacetylene, 4-ethoxyethynylbenzene, p-ethoxyethynylbenzene, ethyl 4-ethynylphenyl ether, Benzene, 1-ethoxy-4-ethynyl-, MFCD00173880

4-Ethoxyphenylacetylene (CAS 79887-14-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H10O and a molecular weight of 146.186 g/mol. Key properties include a melting point of 76-78 °C(lit.), a boiling point of 214.8±23.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 76.2±18.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
79887-14-2
Jingsj CID
J-2642-6
Molecular Formula
C10H10O
Molecular Weight
146.186 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point76-78 °C(lit.)
Boiling Point214.8±23.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point76.2±18.3 °C
Exact Mass146.073166
PSA9.23000
LogP2.85
Vapor Pressure0.2±0.4 mmHg at 25°C
Refractive Index1.524
Additional PropertyInsoluble

Customs & Trade Information

HS Code2909309090
Summary2909309090 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 4-Ethoxyphenylacetylene?

The CAS number of 4-Ethoxyphenylacetylene is 79887-14-2.

What are the molecular formula and molecular weight of 4-Ethoxyphenylacetylene?

4-Ethoxyphenylacetylene has molecular formula C10H10O and molecular weight 146.186 g/mol.

What are the upstream and downstream products of 4-Ethoxyphenylacetylene?

For 4-Ethoxyphenylacetylene, Upstream Products: 1-Ethoxy-4-iodobenzene, 4-Bromophenol, 4-Bromophenetole; Downstream Products: 4'-Ethoxyacetophenone, 4-ethoxybenzonitrile.

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-Ethoxyphenylacetylene (CAS 79887-14-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-2642-6 (accessed 2026-11-09).

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