2-Phenyl-3-butyn-2-ol

Also known as: (±)-2-Phenyl-3-butyn-2-ol, 2-Phenylbut-3-yn-2-ol, 3-Hydroxy-3-phenyl-1-butyne, α-Ethynyl-α-methylbenzenemethanol, DL-2-Phenyl-3-butyn-2-ol, Ethynyl methyl phenyl carbinol, Phenylbutynol, MFCD00004454, EINECS 204-855-2

2-Phenyl-3-butyn-2-ol (CAS 127-66-2) is a compound in the Alcohols 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 48-52 °C, a boiling point of 217.5±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 96.1±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 127-66-2
Jingsj CID: J-1994133-4
Molecular Formula: C₁₀H₁₀O
Molecular Weight: 146.186 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	48-52 °C
Boiling Point	217.5±0.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	96.1±0.0 °C
Exact Mass	146.073166
PSA	20.23000
LogP	1.80
Vapor Pressure	0.1±0.4 mmHg at 25°C
Refractive Index	1.554
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2906299090
Summary	2906299090 other aromatic alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-Phenyl-3-butyn-2-ol?

The CAS number of 2-Phenyl-3-butyn-2-ol is 127-66-2.

What are the molecular formula and molecular weight of 2-Phenyl-3-butyn-2-ol?

2-Phenyl-3-butyn-2-ol has molecular formula C10H10O and molecular weight 146.186 g/mol.

What are the upstream and downstream products of 2-Phenyl-3-butyn-2-ol?

For 2-Phenyl-3-butyn-2-ol, Upstream Products: Acetophenone, Ethynylmagnesium bromide, Acetylene; Downstream Products: 3-Phenylthiophene, 2-Phenyl-2-butanol, 2,4-Diphenylpyridine.

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-Phenyl-3-butyn-2-ol (CAS 127-66-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1994133-4 (accessed 2026-11-09).

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