Bromocyclobutane
Also known as: Cyclobutyl bromide, Cyclobutane, bromo-
Bromocyclobutane (CAS 4399-47-7) 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 135.002 g/mol. Key properties include a boiling point of 107.1±9.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 22.2±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4399-47-7
- Jingsj CID
- J-9050-6
- Molecular Formula
- C4H7Br
- Molecular Weight
- 135.002 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 107.1±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 22.2±0.0 °C |
| Exact Mass | 133.973099 |
| LogP | 2.08 |
| Vapor Pressure | 32.0±0.2 mmHg at 25°C |
| Refractive Index | 1.527 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2903890090 |
|---|---|
| Summary | 2903890090. halogenated derivatives of cyclanic, cyclenic or cyclotherpenic 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 Bromocyclobutane?
The CAS number of Bromocyclobutane is 4399-47-7.
What are the molecular formula and molecular weight of Bromocyclobutane?
Bromocyclobutane has molecular formula C4H7Br and molecular weight 135.002 g/mol.
Is Bromocyclobutane hazardous?
Bromocyclobutane has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Bromocyclobutane?
For Bromocyclobutane, Upstream Products: (Chloromethyl)cyclopropane, But-2-yne, Cyclobutanol; Downstream Products: Vinyl bromide, butadiene, 4-Bromo-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. "Bromocyclobutane (CAS 4399-47-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9050-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.