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1-Ethynyl-2,4,6-trimethylbenzene

Also known as: (2,4,6-Trimethylphenyl)acetylene, 1-ETHYNYL-2,4,6-TRIMETHYLBENZENE, 2,4,6-Trimethylphenylacetylene, 2-ethynyl-1,3,5-trimethylbenzene, 2-ethynyl-1,3-,5-trimethylbenzene, 2-ethynylmesitylene, benzene,2-ethynyl-1,3,5-trimethyl, benzene,2-ethynyl-1,3,5-trimethyl-, ethynylmesitylene, mesityl acetylene, mesitylacetylene, mesitylene,2-ethynyl-, mesitylethyne

1-Ethynyl-2,4,6-trimethylbenzene (CAS 769-26-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H12 and a molecular weight of 144.21300 g/mol. Key properties include a melting point of 4 °C, a boiling point of 213.2ºC at 760 mmHg, a density of 0.92g/cm3 and a flash point of 72.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
769-26-6
Jingsj CID
J-1453441-9
Molecular Formula
C11H12
Molecular Weight
144.21300 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point4 °C
Boiling Point213.2ºC at 760 mmHg
Density0.92g/cm3
Flash Point72.1ºC
Exact Mass144.09400
LogP2.59310
Refractive Index1.524

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 1-Ethynyl-2,4,6-trimethylbenzene?

The CAS number of 1-Ethynyl-2,4,6-trimethylbenzene is 769-26-6.

What are the molecular formula and molecular weight of 1-Ethynyl-2,4,6-trimethylbenzene?

1-Ethynyl-2,4,6-trimethylbenzene has molecular formula C11H12 and molecular weight 144.21300 g/mol.

What are the upstream and downstream products of 1-Ethynyl-2,4,6-trimethylbenzene?

For 1-Ethynyl-2,4,6-trimethylbenzene, Upstream Products: 2,4,6-Trimethyliodobenzene, Trimethylsilylacetylene, 2',4',6'-Trimethylacetophenone; Downstream Products: 2',4',6'-Trimethylacetophenone, 2-Mesitylethanol.

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

Last updated:

How to cite: Jingsj. "1-Ethynyl-2,4,6-trimethylbenzene (CAS 769-26-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1453441-9 (accessed 2026-11-09).

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