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1,4-Dibromo-2,5-dimethoxybenzene

Also known as: 2,5-Dibromo-1,4-dimethoxybenzene, 2,5-Dibromohydroquinone Dimethyl Ether, 1,4-Dimethoxy-2,5-dibromobenzene, Benzene, 1,4-dibromo-2,5-dimethoxy-, MFCD00025694

1,4-Dibromo-2,5-dimethoxybenzene (CAS 2674-34-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H8Br2O2 and a molecular weight of 295.956 g/mol. Key properties include a melting point of 144-147 °C, a boiling point of 290.3±35.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 116.1±24.4 °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.
2674-34-2
Jingsj CID
J-34457-0
Molecular Formula
C8H8Br2O2
Molecular Weight
295.956 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point144-147 °C
Boiling Point290.3±35.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point116.1±24.4 °C
Exact Mass293.889099
PSA18.46000
LogP3.51
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.561

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2909309090
Summary2909309090 other aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives 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 1,4-Dibromo-2,5-dimethoxybenzene?

The CAS number of 1,4-Dibromo-2,5-dimethoxybenzene is 2674-34-2.

What are the molecular formula and molecular weight of 1,4-Dibromo-2,5-dimethoxybenzene?

1,4-Dibromo-2,5-dimethoxybenzene has molecular formula C8H8Br2O2 and molecular weight 295.956 g/mol.

Is 1,4-Dibromo-2,5-dimethoxybenzene hazardous?

1,4-Dibromo-2,5-dimethoxybenzene 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 1,4-Dibromo-2,5-dimethoxybenzene?

For 1,4-Dibromo-2,5-dimethoxybenzene, Upstream Products: 1,4-Dimethoxybenzene, 2,5-dibromobenzene-1,4-diol, iodomethane; Downstream Products: 4-bromo-2,5-dimethoxybenzoic acid, 2,5-Bis[2-(N,N-diethylamino)ethoxy]-1,4-dibromobenzene, 4-Bromo-2,5-dimethoxybenzaldehyde.

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

Last updated:

How to cite: Jingsj. "1,4-Dibromo-2,5-dimethoxybenzene (CAS 2674-34-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34457-0 (accessed 2026-11-09).

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