Methyl 2-butynoate

2-丁炔酸甲酯

Also known as: Methyl tetrolate, Tetrolic acid methyl ester, 2-Butynoic acid methyl ester, 2-Butynoic acid, methyl ester, Methyl but-2-ynoate, but-2-ynoic acid methyl ester, MFCD00009273, methyl methylpropiolate, methyl 3-methylpropynoate

Methyl 2-butynoate (CAS 23326-27-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H6O2 and a molecular weight of 98.100 g/mol. It is also known as Methyl tetrolate, Tetrolic acid methyl ester and 2-Butynoic acid methyl ester. Key properties include a boiling point of 140.9±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 45.0±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
23326-27-4
Jingsj CID
J-11839-2
Molecular Formula
C5H6O2
Chinese Name
2-丁炔酸甲酯
Molecular Weight
98.100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point140.9±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point45.0±0.0 °C

Frequently Asked Questions

What is the CAS number of Methyl 2-butynoate?

The CAS number of Methyl 2-butynoate is 23326-27-4.

What are the molecular formula and molecular weight of Methyl 2-butynoate?

Methyl 2-butynoate has molecular formula C5H6O2 and molecular weight 98.100 g/mol.

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

Last updated:

How to cite: Jingsj. "Methyl 2-butynoate (CAS 23326-27-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11839-2 (accessed 2026-10-22).

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