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Ethyl 2-hexynoate

Also known as: Ethyl hex-2-ynoate, 2-Hexynoic acid ethyl ester, hex-2-ynoic acid ethyl ester, EINECS 240-335-1, MFCD00015257

Ethyl 2-hexynoate (CAS 16205-90-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H12O2 and a molecular weight of 140.18000 g/mol. Key properties include a boiling point of 93ºC 24mm 205.1ºC at 760 mmHg, a density of 0.951 g/cm3 and a flash point of 76.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16205-90-6
Jingsj CID
J-47819-3
Molecular Formula
C8H12O2
Molecular Weight
140.18000 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point93ºC 24mm 205.1ºC at 760 mmHg
Density0.951 g/cm3
Flash Point76.9ºC
Exact Mass140.08400
PSA26.30000
LogP1.35300
Vapor Pressure0.255mmHg at 25°C
Refractive Index1.444

Frequently Asked Questions

What is the CAS number of Ethyl 2-hexynoate?

The CAS number of Ethyl 2-hexynoate is 16205-90-6.

What are the molecular formula and molecular weight of Ethyl 2-hexynoate?

Ethyl 2-hexynoate has molecular formula C8H12O2 and molecular weight 140.18000 g/mol.

What are the upstream and downstream products of Ethyl 2-hexynoate?

For Ethyl 2-hexynoate, Upstream Products: Ethyl 3-oxohexanoate, Pent-1-yne, Ethanol; Downstream Products: 2-Hexynoic acid, Ethyl sorbate, Ethyl 3-hydroxyhexanoate.

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

Last updated:

How to cite: Jingsj. "Ethyl 2-hexynoate (CAS 16205-90-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47819-3 (accessed 2026-11-09).

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