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1-Ethynyl-1-cyclohexanol

Also known as: 1-Ethynylcyclohexanol, 1-Ethynyl-1-hydroxycyclohexane, Cyclohexanol, 1-ethynyl-, 1-Ethynylcyclohexan-1-ol, 1-Ethin-1-cyclohexanol, (1-Hydroxycyclohexyl)ethyne

1-Ethynyl-1-cyclohexanol (CAS 78-27-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C8H12O and a molecular weight of 124.180 g/mol. Key properties include a melting point of 30-33 °C(lit.), a boiling point of 174.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 62.8±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
78-27-3
Jingsj CID
J-1361934-6
Molecular Formula
C8H12O
Molecular Weight
124.180 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point30-33 °C(lit.)
Boiling Point174.0±0.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point62.8±0.0 °C
Exact Mass124.088814
PSA20.23000
LogP1.73
Vapor Pressure0.4±0.7 mmHg at 25°C
Refractive Index1.494
Additional Property10 g/L (20 ºC)

Customs & Trade Information

HS Code2906199090
Summary2906199090. cyclanic, cyclenic or cyclotherpenic alcohols. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1-Ethynyl-1-cyclohexanol?

The CAS number of 1-Ethynyl-1-cyclohexanol is 78-27-3.

What are the molecular formula and molecular weight of 1-Ethynyl-1-cyclohexanol?

1-Ethynyl-1-cyclohexanol has molecular formula C8H12O and molecular weight 124.180 g/mol.

What are the upstream and downstream products of 1-Ethynyl-1-cyclohexanol?

For 1-Ethynyl-1-cyclohexanol, Upstream Products: Cyclohexanone, Ethynylmagnesium bromide, Acetylene; Downstream Products: (1-Cyclohexenyl)acetylene, Cyclohexanone, 1-Acetyl-1-cyclohexene.

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-1-cyclohexanol (CAS 78-27-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361934-6 (accessed 2026-11-09).

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