3-Chloro-1-butyne
3-氯-1-丁炔
Also known as: 1-Butyne, 3-chloro-, 3-chlorobut-1-yne, 2-Chloro-3-butyne, 1-butyn-3-yl chloride, 3-chloro-but-1-yne
3-Chloro-1-butyne (CAS 21020-24-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H5Cl and a molecular weight of 88.535 g/mol. It is also known as 1-Butyne, 3-chloro-, 3-chlorobut-1-yne and 2-Chloro-3-butyne. Key properties include a boiling point of 68.5±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of -11.6±15.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21020-24-6
- Jingsj CID
- J-30729-1
- Molecular Formula
- C4H5Cl
- Chinese Name
- 3-氯-1-丁炔
- Molecular Weight
- 88.535 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 68.5±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | -11.6±15.2 °C |
Frequently Asked Questions
What is the CAS number of 3-Chloro-1-butyne?
The CAS number of 3-Chloro-1-butyne is 21020-24-6.
What are the molecular formula and molecular weight of 3-Chloro-1-butyne?
3-Chloro-1-butyne has molecular formula C4H5Cl and molecular weight 88.535 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Chloro-1-butyne (CAS 21020-24-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30729-1 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.