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1-bromo-4-chlorobutane

Also known as: 1-Chloro-4-bromobutane, 4-Bromo-1-chlorobutane, 4-Chlorobutyl bromide, Tetramethylene chlorobromide, Butane, 1-bromo-4-chloro-, 4-Bromobutyl chloride, 1-brom-4-chlorbutan, 4-bromobutanyl chloride, MFCD00001010, EINECS 230-089-3

1-bromo-4-chlorobutane (CAS 6940-78-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H8BrCl and a molecular weight of 171.463 g/mol. Key properties include a boiling point of 164.3±8.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 60.0±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6940-78-9
Jingsj CID
J-1497809-7
Molecular Formula
C4H8BrCl
Molecular Weight
171.463 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point164.3±8.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point60.0±0.0 °C
Exact Mass169.949783
LogP2.52
Vapor Pressure2.6±0.3 mmHg at 25°C
Refractive Index1.469
Additional PropertySLIGHTLY SOLUBLE

GHS Safety & Compliance

FlammableSignal word: Warning
  • H226 — Flammable liquid and vapour

Customs & Trade Information

HS Code2903799090
Summary2903799090 halogenated derivatives of acyclic hydrocarbons containing two or more different halogens。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1-bromo-4-chlorobutane?

The CAS number of 1-bromo-4-chlorobutane is 6940-78-9.

What are the molecular formula and molecular weight of 1-bromo-4-chlorobutane?

1-bromo-4-chlorobutane has molecular formula C4H8BrCl and molecular weight 171.463 g/mol.

Is 1-bromo-4-chlorobutane hazardous?

1-bromo-4-chlorobutane has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.

What are the upstream and downstream products of 1-bromo-4-chlorobutane?

For 1-bromo-4-chlorobutane, Upstream Products: Benzyloxyacetic acid, 1-Bromo-3-chloropropane, 4-Chloro-1-butanol; Downstream Products: 1-chloro-4-phenylbutane, 1-Chloro-4-ethoxybutane, 4-Chloro-1-butene.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1-bromo-4-chlorobutane (CAS 6940-78-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1497809-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.