1-Ethynyl-3-(trifluoromethoxy)benzene

1-乙炔基-3-(三氟甲氧基)苯

Also known as: 3-(Trifluoromethoxy)phenylacetylene, 1-Ethynyl-3-(trifluoromethoxy)benzene, 3-Ethynylphenyl trifluoromethyl ether, 3-Ethynyl-alpha,alpha,alpha-trifluoroanisole, Benzene, 1-ethynyl-3-(trifluoromethoxy)-, pc9568

1-Ethynyl-3-(trifluoromethoxy)benzene (CAS 866683-57-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H5F3O and a molecular weight of 186.13100 g/mol. It is also known as 3-(Trifluoromethoxy)phenylacetylene, 3-Ethynylphenyl trifluoromethyl ether and 3-Ethynyl-alpha,alpha,alpha-trifluoroanisole. Key properties include a boiling point of 166.3ºC at 760 mmHg, a density of 1.27g/cm3 and a flash point of 60.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
866683-57-0
Jingsj CID
J-1369950-3
Molecular Formula
C9H5F3O
Chinese Name
1-乙炔基-3-(三氟甲氧基)苯
Molecular Weight
186.13100 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point166.3ºC at 760 mmHg
Density1.27g/cm3
Flash Point60.5ºC

Frequently Asked Questions

What is the CAS number of 1-Ethynyl-3-(trifluoromethoxy)benzene?

The CAS number of 1-Ethynyl-3-(trifluoromethoxy)benzene is 866683-57-0.

What are the molecular formula and molecular weight of 1-Ethynyl-3-(trifluoromethoxy)benzene?

1-Ethynyl-3-(trifluoromethoxy)benzene has molecular formula C9H5F3O and molecular weight 186.13100 g/mol.

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

Last updated:

How to cite: Jingsj. "1-Ethynyl-3-(trifluoromethoxy)benzene (CAS 866683-57-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1369950-3 (accessed 2026-10-25).

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