1-Bromo-1-butyne
1-溴-1-丁炔
Also known as: 1-Butynyl bromide, 1-Butyne, 1-bromo- (6CI,7CI,9CI), 1-bromobut-1-yne, 1-bromobutyne, butynyl bromide
1-Bromo-1-butyne (CAS 50405-39-5) 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 1-Butynyl bromide, 1-Butyne, 1-bromo- (6CI,7CI,9CI) and 1-bromobut-1-yne. Key properties include a boiling point of 104.256ºC at 760 mmHg, a density of 1.461g/cm3 and a flash point of 21.683ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 50405-39-5
- Jingsj CID
- J-1383329-9
- Molecular Formula
- C4H5Br
- Chinese Name
- 1-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 | 104.256ºC at 760 mmHg |
|---|---|
| Density | 1.461g/cm3 |
| Flash Point | 21.683ºC |
Frequently Asked Questions
What is the CAS number of 1-Bromo-1-butyne?
The CAS number of 1-Bromo-1-butyne is 50405-39-5.
What are the molecular formula and molecular weight of 1-Bromo-1-butyne?
1-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. "1-Bromo-1-butyne (CAS 50405-39-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1383329-9 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.