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Ethynylcyclopropane

Also known as: 1-cyclopropylacetylene, CPAC, CYCLOPROPYL ACETHLENE, CYCLOPROPYLACETYLENE (CPA), CYCLOPROPYLACETYLENE, 70WT% SOLUTION IN&, CYCLOPROPYLACETYLENE, NEAT, 97%, Cyclopropane, ethynyl-, Cyclopropane, ethynyl- (7CI, 8CI, 9CI), Cyclopropane,ethynyl, Cyclopropane,ethynyl-, Cyclopropyl acetylen, Cyclopropyl acetylene, Cyclopropylacethylene, Cyclopropylacetylene, Cylopropyl acetylene, Cylopropylethylnen, EINECS 425-430-1, L3TJ A1UU1, MFCD02181090, cyclopropylethyne

Ethynylcyclopropane (CAS 6746-94-7) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H6 and a molecular weight of 66.101 g/mol. Key properties include a boiling point of 31.4±7.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of -44.6±12.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6746-94-7
Jingsj CID
J-1326578-6
Molecular Formula
C5H6
Molecular Weight
66.101 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point31.4±7.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point-44.6±12.3 °C
Exact Mass66.046951
LogP1.36
Vapor Pressure604.5±0.0 mmHg at 25°C
Refractive Index1.455
Storage ConditionsFlammables area

Customs & Trade Information

HS Code2902199090
Summary2902199090 other cyclanes, cyclenes and cyclotherpenes。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Ethynylcyclopropane?

The CAS number of Ethynylcyclopropane is 6746-94-7.

What are the molecular formula and molecular weight of Ethynylcyclopropane?

Ethynylcyclopropane has molecular formula C5H6 and molecular weight 66.101 g/mol.

What are the upstream and downstream products of Ethynylcyclopropane?

For Ethynylcyclopropane, Upstream Products: Cyclopropyl methyl ketone, 5-Chloro-1-pentyne, n-Hexyllithium; Downstream Products: (3,3-dimethoxyprop-1-yn-1-yl)cyclopropane, Ethyl 5-cyclopropylisoxazole-3-carboxylate, BENZENE, 1-CYCLOPROPYL-3-METHYL-.

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

Last updated:

How to cite: Jingsj. "Ethynylcyclopropane (CAS 6746-94-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1326578-6 (accessed 2026-11-09).

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