methyl 4-chlorobut-2-ynoate
4-氯-2-丁炔酸甲酯
Also known as: 2-Butynoic acid, 4-chloro-, methyl ester, Methyl-4-chloro-2-butynoate, methyl chlorotetrolate, methyl 4-chlorobut-2-ynoate, Chlorotetrolic acid methyl ester, Chlortetrolsaeuremethylester, Chlor-but-2-insaeure-methylester, Methyl 4-chlorobutynoate, chloro-but-2-ynoic acid methyl ester
methyl 4-chlorobut-2-ynoate (CAS 41658-12-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H5ClO2 and a molecular weight of 132.54500 g/mol. It is also known as 2-Butynoic acid, 4-chloro-, methyl ester, Methyl-4-chloro-2-butynoate and methyl chlorotetrolate. Key properties include a boiling point of 191.6ºC at 760 mmHg, a density of 1.213g/cm3 and a flash point of 84.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 41658-12-2
- Jingsj CID
- J-1095922-8
- Molecular Formula
- C5H5ClO2
- Chinese Name
- 4-氯-2-丁炔酸甲酯
- Molecular Weight
- 132.54500 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 191.6ºC at 760 mmHg |
|---|---|
| Density | 1.213g/cm3 |
| Flash Point | 84.7ºC |
Frequently Asked Questions
What is the CAS number of methyl 4-chlorobut-2-ynoate?
The CAS number of methyl 4-chlorobut-2-ynoate is 41658-12-2.
What are the molecular formula and molecular weight of methyl 4-chlorobut-2-ynoate?
methyl 4-chlorobut-2-ynoate has molecular formula C5H5ClO2 and molecular weight 132.54500 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "methyl 4-chlorobut-2-ynoate (CAS 41658-12-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1095922-8 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.