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1,2-Dibromobenzene

Also known as: o-Dibromobenzene, ortho-Dibromobenzene, 1,2-Dibrombenzol, Benzene, 1,2-dibromo-

1,2-Dibromobenzene (CAS 583-53-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H4Br2 and a molecular weight of 235.904 g/mol. Key properties include a melting point of 4-6 °C(lit.), a boiling point of 225.4±13.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 91.7±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
583-53-9
Jingsj CID
J-45488-6
Molecular Formula
C6H4Br2
Molecular Weight
235.904 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point4-6 °C(lit.)
Boiling Point225.4±13.0 °C at 760 mmHg
Density1.9±0.1 g/cm3
Flash Point91.7±0.0 °C
Exact Mass233.867966
LogP3.63
Additional Property8.2 (vs air)
Vapor Pressure0.1±0.4 mmHg at 25°C
Refractive Index1.599
Additional PropertyInsoluble

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2903999090
Summary2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,2-Dibromobenzene?

The CAS number of 1,2-Dibromobenzene is 583-53-9.

What are the molecular formula and molecular weight of 1,2-Dibromobenzene?

1,2-Dibromobenzene has molecular formula C6H4Br2 and molecular weight 235.904 g/mol.

Is 1,2-Dibromobenzene hazardous?

1,2-Dibromobenzene has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 1,2-Dibromobenzene?

For 1,2-Dibromobenzene, Upstream Products: 3,4-dibromoaniline, Bromobenzene, benzene; Downstream Products: 2-(3,4-dibromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 2,3-Dibromoaniline, Bromobenzene.

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

Last updated:

How to cite: Jingsj. "1,2-Dibromobenzene (CAS 583-53-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45488-6 (accessed 2026-11-09).

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