Ethyl 2-hydroxy-3-butynoate

2-羟基-3-丁炔酸乙酯

Also known as: 2-Hydroxy-3-butynoic acid ethyl ester, Ethyl 2-hydroxybut-3-ynoate, Hydroxybutynoic acid ethyl ester, 2-Hydroxy-3-butin-saeure-ethylester, 3-Butynoic acid, 2-hydroxy-, ethyl ester, CPD0-1604, Ethyl 2-hydroxy-3-butynoate

Ethyl 2-hydroxy-3-butynoate (CAS 18418-08-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8O3 and a molecular weight of 128.126 g/mol. It is also known as 2-Hydroxy-3-butynoic acid ethyl ester, Ethyl 2-hydroxybut-3-ynoate and Hydroxybutynoic acid ethyl ester. Key properties include a boiling point of 199.7±25.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 81.1±15.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18418-08-1
Jingsj CID
J-34476-4
Molecular Formula
C6H8O3
Chinese Name
2-羟基-3-丁炔酸乙酯
Molecular Weight
128.126 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point199.7±25.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point81.1±15.9 °C

Frequently Asked Questions

What is the CAS number of Ethyl 2-hydroxy-3-butynoate?

The CAS number of Ethyl 2-hydroxy-3-butynoate is 18418-08-1.

What are the molecular formula and molecular weight of Ethyl 2-hydroxy-3-butynoate?

Ethyl 2-hydroxy-3-butynoate has molecular formula C6H8O3 and molecular weight 128.126 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyl 2-hydroxy-3-butynoate (CAS 18418-08-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34476-4 (accessed 2026-10-23).

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