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3-Ethynyl-2-methoxyphenol

Also known as: PHENOL, 5-ETHYNYL-2-METHOXY-, 3-ETHYNYL-2-METHOXY-PHENOL, 3-Ethynyl-2-methoxyphenol, 5-Ethynyl-2-methoxy-Phenol, 5-ethynyl-2-methoxyPhenol, Phenol, 5-ethynyl-2-Methoxy-, 2-(3-hydroxy-4-methoxyphenyl)ethyne, 5-ethynyl-2-methoxyphenol

3-Ethynyl-2-methoxyphenol (CAS 871940-23-7) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C9H8O2 and a molecular weight of 148.15900 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
871940-23-7
Jingsj CID
J-1356262-4
Molecular Formula
C9H8O2
Molecular Weight
148.15900 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Exact Mass148.05200
PSA29.46000
LogP1.38210

Frequently Asked Questions

What is the CAS number of 3-Ethynyl-2-methoxyphenol?

The CAS number of 3-Ethynyl-2-methoxyphenol is 871940-23-7.

What are the molecular formula and molecular weight of 3-Ethynyl-2-methoxyphenol?

3-Ethynyl-2-methoxyphenol has molecular formula C9H8O2 and molecular weight 148.15900 g/mol.

What are the upstream and downstream products of 3-Ethynyl-2-methoxyphenol?

For 3-Ethynyl-2-methoxyphenol, Upstream Products: 5-iodo-2-methoxyphenyl acetate, Trimethylsilylacetylene, Isovanillin; Downstream Products: 4-Hydroxy-3-methoxybenzamidoxime.

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

Last updated:

How to cite: Jingsj. "3-Ethynyl-2-methoxyphenol (CAS 871940-23-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1356262-4 (accessed 2026-11-09).

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