1,4-dibromobut-2-yne
1,4-二溴-2-丁炔
Also known as: 1,4-DIBROMO-2-BUTYNE, 2-Butyne, 1,4-dibromo-, 1,4-dibromo-2-butyn, 1,4-dibromo-5-butyne, 1,4-dibromo-but-2-yne, 4-Dibromo-2-butyne, NSC 519345
1,4-dibromobut-2-yne (CAS 2219-66-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H4Br2 and a molecular weight of 211.88300 g/mol. It is also known as 1,4-DIBROMO-2-BUTYNE, 2-Butyne, 1,4-dibromo- and 1,4-dibromo-2-butyn. Key properties include a boiling point of 220.6ºC at 760mmHg, a density of 2.032g/cm3 and a flash point of 91.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2219-66-1
- Jingsj CID
- J-1614791-9
- Molecular Formula
- C4H4Br2
- Chinese Name
- 1,4-二溴-2-丁炔
- Molecular Weight
- 211.88300 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 220.6ºC at 760mmHg |
|---|---|
| Density | 2.032g/cm3 |
| Flash Point | 91.5ºC |
Frequently Asked Questions
What is the CAS number of 1,4-dibromobut-2-yne?
The CAS number of 1,4-dibromobut-2-yne is 2219-66-1.
What are the molecular formula and molecular weight of 1,4-dibromobut-2-yne?
1,4-dibromobut-2-yne has molecular formula C4H4Br2 and molecular weight 211.88300 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,4-dibromobut-2-yne (CAS 2219-66-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1614791-9 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.