(E)-2-Bromo-2-butene

(E)-2-溴-2-丁烯

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. It is also known as 2-BROMO-2-BUTENE, trans-2-Bromo-2-butene and 2-BROMO-TRANS-2-BUTENE. 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 34 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3017-71-8
Jingsj CID
J-1516395-0
Molecular Formula
C4H7Br
Chinese Name
(E)-2-溴-2-丁烯
Molecular Weight
135.00200 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point91-92 °C(lit.)
Density1.331 g/mL at 25 °C(lit.)
Flash Point34 °F

GHS Safety & Compliance

FlammableSignal word: Danger

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.

Data compiled from public chemical databases 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-1516395-0 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.