Methyl 2-butynoate
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. 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-11839-8
- Molecular Formula
- C5H6O2
- Molecular Weight
- 98.100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 140.9±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 45.0±0.0 °C |
| Exact Mass | 98.036781 |
| PSA | 26.30000 |
| LogP | 1.43 |
| Vapor Pressure | 6.0±0.3 mmHg at 25°C |
| Refractive Index | 1.424 |
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.
What are the upstream and downstream products of Methyl 2-butynoate?
For Methyl 2-butynoate, Upstream Products: Methanol, 2-Butynoic acid, 3-Methyl-3-pyrazolin-5-one; Downstream Products: Methyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate, Bianthronyl, Methyl 3-methyl-2-benzofurancarboxylate.
Data compiled from public chemical databases such as PubChem 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-11839-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.