ethyl pent-2-ynoate

2-戊炔酸乙酯

Also known as: 2-Pentynoic acid ethyl ester, 2-Pentynoic acid, ethyl ester, Ethyl 2-pentynoate, ethyl pent-2-yn-1-oate, pent-2-ynoic acid ethyl ester, NSC 190964, C2H5CCCO2Et, MFCD00015221, TIMTEC-BB SBB008819

ethyl pent-2-ynoate (CAS 55314-57-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H10O2 and a molecular weight of 126.153 g/mol. It is also known as 2-Pentynoic acid ethyl ester, 2-Pentynoic acid, ethyl ester and Ethyl 2-pentynoate. Key properties include a boiling point of 184.4±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 65.4±6.7 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
55314-57-3
Jingsj CID
J-18479-9
Molecular Formula
C7H10O2
Chinese Name
2-戊炔酸乙酯
Molecular Weight
126.153 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point184.4±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point65.4±6.7 °C

GHS Safety & Compliance

Flammable / Corrosion / Health HazardSignal word: Danger

Frequently Asked Questions

What is the CAS number of ethyl pent-2-ynoate?

The CAS number of ethyl pent-2-ynoate is 55314-57-3.

What are the molecular formula and molecular weight of ethyl pent-2-ynoate?

ethyl pent-2-ynoate has molecular formula C7H10O2 and molecular weight 126.153 g/mol.

Is ethyl pent-2-ynoate hazardous?

ethyl pent-2-ynoate has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "ethyl pent-2-ynoate (CAS 55314-57-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18479-9 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.