3-Bromo-1-butyne
3-溴-1-丁炔
Also known as: 2-Bromo-3-butyne, 3-Bromobut-1-yne, 1-Butyne, 3-bromo-
3-Bromo-1-butyne (CAS 18668-72-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H5Br and a molecular weight of 132.98600 g/mol. It is also known as 2-Bromo-3-butyne, 3-Bromobut-1-yne and 1-Butyne, 3-bromo-. Key properties include a boiling point of 91 - 92 °C at 1，013 百帕 (lit.) and a flash point of 24.8 °C - closed cup (lit.). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18668-72-9
- Jingsj CID
- J-1384708-1
- Molecular Formula
- C4H5Br
- Chinese Name
- 3-溴-1-丁炔
- Molecular Weight
- 132.98600 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 91 - 92 °C at 1，013 百帕 (lit.) |
|---|---|
| Flash Point | 24.8 °C - closed cup (lit.) |
Frequently Asked Questions
What is the CAS number of 3-Bromo-1-butyne?
The CAS number of 3-Bromo-1-butyne is 18668-72-9.
What are the molecular formula and molecular weight of 3-Bromo-1-butyne?
3-Bromo-1-butyne has molecular formula C4H5Br and molecular weight 132.98600 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Bromo-1-butyne (CAS 18668-72-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1384708-1 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.