2674-34-2

Basic information

• Product Name: 1,4-Dibromo-2,5-dimethoxybenzene
• Synonyms: 1,4-DIBROMO-2,5-DIMETHOXYBENZENE;1,4-Dibromo-2,5-dimethoxybenzene, 98+%;1,4-Dimethoxy-2,5-dibromobenzene;2,5-Dibromo-1,4-dimethoxybenzene;2,5-Dimethoxy-1,4-dibromobenzene;1,4-Dibromo-2,5-dimethoxybenzene,99%
• CAS NO: 2674-34-2
• Molecular Formula: C₈H₈Br₂O₂
• Molecular Weight: 295.96
• Product Categories: Ethers;Organic Building Blocks;Oxygen Compounds;NULL
• Mol File: 2674-34-2.mol
• Article Data: 36

Chemical Properties

• Melting Point: 144-147 °C
• Boiling Point: 290.3 °C at 760 mmHg
• Flash Point: 116.1 °C
• Appearance: white crystalline powder
• Density: 2,24 g/cm3
• Vapor Pressure: 0.00364mmHg at 25°C
• Refractive Index: 1.4947 (estimate)
• Storage Temp.: Sealed in dry,Room Temperature
• Water Solubility: Insoluble in water.
• BRN: 1953103
• CAS DataBase Reference: 1,4-Dibromo-2,5-dimethoxybenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-Dibromo-2,5-dimethoxybenzene(2674-34-2)
• EPA Substance Registry System: 1,4-Dibromo-2,5-dimethoxybenzene(2674-34-2)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 37/39-26-36
• WGK Germany: 3
• Hazardous Substances Data: 2674-34-2(Hazardous Substances Data)

Usage

Chemical Properties

white crystalline powder

Uses

1,4-Dibromo-2,5-dimethoxybenzene was used in the preparation of poly[(9,9-bis(6-(dibromohexyl)-2,7-fluorene))-alt-1,4-(2,5-dimethoxybenzene)], a water-soluble polyfluorene derivative.

Synthesis Reference(s)

The Journal of Organic Chemistry, 63, p. 3764, 1998 DOI: 10.1021/jo9721812

General Description

Crystal structure of 1,4-dibromo-2,5-dimethoxybenzene has been reported to be monoclinic and its asymmetric unit is composed of one-half of the molecule. Lithium diisopropylamide (LDA) mediated metallation of 1,4-dibromo-2,5-dimethoxybenzene has been proposed.

InChI:InChI=1/C8H8Br2O2/c1-11-7-3-6(10)8(12-2)4-5(7)9/h3-4H,1-2H3

Upstream product

• 150-76-5 4-methoxy-phenol 
• 14753-51-6 2,5-dibromohydroquinone 
• 77-78-1 dimethyl sulfate 
• 31405-34-2 2,5-dibromo-4-methoxyphenol 
• 150-78-7 1,4-dimethoxybezene 
• 7726-95-6 bromine 
• 64-19-7 acetic acid 
• 7789-69-7 phosphorus pentabromide 
• 7377-91-5 2,3,6-tribromo-4-methoxy-phenol 
• 123-31-9 hydroquinone 
• 106-51-4 p-benzoquinone 
• 74-88-4 methyl iodide 

Downstream Products

• 855749-57-4 4-bromo-2,5-dimethoxy-benzoic acid methyl ester 
• 119891-67-7 1,4-dimethoxy-2,5-diphenoxy-benzene 
• 1633-14-3 2,5-dibromo-1,4-benzoquinone 
• 14753-51-6 2,5-dibromohydroquinone 
• 65400-01-3 1,4-Dibromo-3,3,6,6-tetramethoxy-cyclohexa-1,4-diene 
• 128702-13-6 Cymopol dimethyl ether 
• 142397-44-2 (E,E)-1,4-bis(3,3-dimethoxy-1-propenyl)-2,5-dimethoxybenzene 
• 116424-06-7 1,4-dimethoxy-2,5-bis(3,4-dimethoxyphenylthio)benzene 
• 4655-68-9 2,5-Dimethoxy-1,4-benzoldicarbonitril 
• 19403-94-2 1,2,4,5-tetrabromo-3,6-dimethoxybenzene 
• 78889-37-9 ((2,5-dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))dibenzene 
• 129607-89-2 2,2’-(2,5-dimethoxy-1,4-phenylene)dithiophene 
• 206867-54-1 2,5-dibutyl-1,4-dimethoxybenzene 
• 203579-45-7 1,4-dimethoxy-2,5-bis(trideuteriomethyl)benzene 

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