Methyl but-3-ynoate
3-丁炔酸甲酯
Also known as: Methyl 3-butynoate, 3-Butynoic acid methyl ester, methyl but-3-ynoate, Methyl 2-Methylbut-3-ynoate, methylpropiolate, But-3-insaeure-methylester, but-3-ynoic acid methyl ester
Methyl but-3-ynoate (CAS 32804-66-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H4N2 and a molecular weight of 104.109 g/mol. It is also known as Methyl 3-butynoate, 3-Butynoic acid methyl ester and methyl but-3-ynoate. Key properties include a boiling point of 228.2±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 103.6±15.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 32804-66-3
- Jingsj CID
- J-1377923-2
- Molecular Formula
- C6H4N2
- Chinese Name
- 3-丁炔酸甲酯
- Molecular Weight
- 104.109 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 228.2±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 103.6±15.6 °C |
Frequently Asked Questions
What is the CAS number of Methyl but-3-ynoate?
The CAS number of Methyl but-3-ynoate is 32804-66-3.
What are the molecular formula and molecular weight of Methyl but-3-ynoate?
Methyl but-3-ynoate has molecular formula C6H4N2 and molecular weight 104.109 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl but-3-ynoate (CAS 32804-66-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1377923-2 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.