Ethylcyclopentene

Also known as: 1-(1-Cyclopentenyl)ethane, 1-Aethyl-cyclopent-1-en, 1-Aethyl-cyclopenten, 1-ETHYL-1-CYCLOPENTENE, 1-ETHYL-1-CYCLOPENTENE 99+%, 1-ETHYLCYCLOPENTENE, 1-Ethyl-1-cyclopentene>1-ETHYL-1-CYCLOPENTENE ISO 9001：2015 REACH, 1-Ethylcyclopentene-1, 1-ethyl-cyclopentene, 1-ethylcyclopentene, Cyclopentene,1-ethyl, InChI=1/C7H12/c1-2-7-5-3-4-6-7/h5H,2-4,6H2,1H, cyclopentene,1-ethyl-

Ethylcyclopentene (CAS 2146-38-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H12 and a molecular weight of 96.17020 g/mol. Key properties include a melting point of -118.4°C, a boiling point of 106.8ºC at 760mmHg, a density of 0.817g/cm3 and a flash point of -1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2146-38-5
Jingsj CID: J-9977-4
Molecular Formula: C₇H₁₂
Molecular Weight: 96.17020 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	-118.4°C
Boiling Point	106.8ºC at 760mmHg
Density	0.817g/cm3
Flash Point	-1 °C
Exact Mass	96.09390
LogP	2.50670
Vapor Pressure	32.4mmHg at 25°C
Refractive Index	1.456

Customs & Trade Information

HS Code	2902199090
Summary	2902199090 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 Ethylcyclopentene?

The CAS number of Ethylcyclopentene is 2146-38-5.

What are the molecular formula and molecular weight of Ethylcyclopentene?

Ethylcyclopentene has molecular formula C7H12 and molecular weight 96.17020 g/mol.

What are the upstream and downstream products of Ethylcyclopentene?

For Ethylcyclopentene, Upstream Products: 1-Ethylcyclopentanol, Cycloheptanone, Cyclopentanone; Downstream Products: Cyclopentane, ethenyl-, Cyclopentene, 3-ethyl-, Cyclopentane,ethylidene-.

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. "Ethylcyclopentene (CAS 2146-38-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9977-4 (accessed 2026-11-09).

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