2-Ethynylphenol

Also known as: 2-Ethynyl-phenol, Phenol, 2-ethynyl-, SKL1474, (2-Hydroxyphenyl)acetylene, o-Ethynylphenol, o-Hydroxyphenylacetylene

2-Ethynylphenol (CAS 5101-44-0) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C8H6O and a molecular weight of 118.13300 g/mol. Key properties include a boiling point of 200.9ºC at 760mmHg, a density of 1.12g/cm3 and a flash point of 87.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5101-44-0
Jingsj CID: J-1033965-8
Molecular Formula: C₈H₆O
Molecular Weight: 118.13300 g/mol
Category: Alcohols
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	200.9ºC at 760mmHg
Density	1.12g/cm3
Flash Point	87.4ºC
Exact Mass	118.04200
PSA	20.23000
LogP	1.37350
Refractive Index	1.589

Customs & Trade Information

HS Code	2907199090
Summary	2907199090 other monophenols 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 2-Ethynylphenol?

The CAS number of 2-Ethynylphenol is 5101-44-0.

What are the molecular formula and molecular weight of 2-Ethynylphenol?

2-Ethynylphenol has molecular formula C8H6O and molecular weight 118.13300 g/mol.

What are the upstream and downstream products of 2-Ethynylphenol?

For 2-Ethynylphenol, Upstream Products: 4-Chloro-2H-chromen-2-one, 2-Iodophenol, 3-Bromobenzofuran; Downstream Products: (E)-2'-Hydroxychalcone, Flavanone, Coumarin.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Ethynylphenol (CAS 5101-44-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1033965-8 (accessed 2026-11-09).

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