(E)-2-Bromo-2-butene
Also known as: 2-BROMO-2-BUTENE, trans-2-Bromo-2-butene, 2-BROMO-TRANS-2-BUTENE, 1-METHYL-1-PROPENYL BROMIDE, trans-2-bromo-but-2-ene, 2-bromobut-2-ene, (E)-2-bromobut-2-ene
(E)-2-Bromo-2-butene (CAS 3017-71-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H7Br and a molecular weight of 135.00200 g/mol. Key properties include a boiling point of 91-92 °C(lit.), a density of 1.331 g/mL at 25 °C(lit.) and a flash point of 1.1 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 3017-71-8
- Jingsj CID
- J-1516395-8
- Molecular Formula
- C4H7Br
- Molecular Weight
- 135.00200 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 91-92 °C(lit.) |
|---|---|
| Density | 1.331 g/mL at 25 °C(lit.) |
| Flash Point | 1.1 °C |
| Exact Mass | 133.97300 |
| LogP | 2.30500 |
| Refractive Index | n20/D 1.461(lit.) |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
Customs & Trade Information
| HS Code | 2903399090 |
|---|---|
| Summary | 2903399090. brominated,fluorinated or iodinated derivatives of acyclic hydrocarbons. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of (E)-2-Bromo-2-butene?
The CAS number of (E)-2-Bromo-2-butene is 3017-71-8.
What are the molecular formula and molecular weight of (E)-2-Bromo-2-butene?
(E)-2-Bromo-2-butene has molecular formula C4H7Br and molecular weight 135.00200 g/mol.
Is (E)-2-Bromo-2-butene hazardous?
(E)-2-Bromo-2-butene has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour.
What are the upstream and downstream products of (E)-2-Bromo-2-butene?
For (E)-2-Bromo-2-butene, Upstream Products: meso-2,3-dibromobutane, 2-butene, 2,3-Dibromobutane, mixture of (±) and meso; Downstream Products: trans-2-Methyl-2-butenal, Acetoin, But-2-yne.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(E)-2-Bromo-2-butene (CAS 3017-71-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516395-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.