ChemicalBook > CAS DataBase List > 1,4-Dibromo-2,5-dichlorobenzene

1,4-Dibromo-2,5-dichlorobenzene

Product Name: 1,4-Dibromo-2,5-dichlorobenzene
CAS No.: 4571-24-8
Chemical Name: 1,4-Dibromo-2,5-dichlorobenzene
Synonyms: 1,4-Dibromo-2,5-dichlorobenzen;2,5-dichlorop-p-dibromobenzene;1,4-Dibromo-2,5-dichlorobenzene;1,4-Dichloro-2,5-dibromobenzene;Benzene,1,4-dibromo-2,5-dichloro-
CBNumber: CB32322664
Molecular Formula: C6H2Br2Cl2
Formula Weight: 304.79
MOL File: 4571-24-8.mol

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1,4-Dibromo-2,5-dichlorobenzene Property

Melting point:: 148-150 °C
Boiling point:: 292.9±35.0 °C(Predicted)
Density: 2.091±0.06 g/cm3(Predicted)
storage temp.: 2-8°C
Appearance: White to off-white Solid

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TRC

Product number: D425428
Product name: 1,4-Dibromo-2,5-dichlorobenzene
Packaging: 50mg
Price: $45
Updated: 2021/12/16

AK Scientific

Product number: 2936AQ
Product name: 1,4-DIBROMO-2,5-DICHLOROBENZENE
Packaging: 5g
Price: $544.4
Updated: 2021/12/16

Ambeed

Product number: A126296
Product name: 1,4-Dibromo-2,5-dichlorobenzene
Purity: 95%
Packaging: 250mg
Price: $27
Updated: 2021/12/16

Ambeed

Product number: A126296
Product name: 1,4-Dibromo-2,5-dichlorobenzene
Purity: 95%
Packaging: 1g
Price: $61
Updated: 2021/12/16

Ambeed

Product number: A126296
Product name: 1,4-Dibromo-2,5-dichlorobenzene
Purity: 95%
Packaging: 5g
Price: $205
Updated: 2021/12/16

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1,4-Dibromo-2,5-dichlorobenzene Chemical Properties,Usage,Production

Synthesis

106-46-7

1435-50-3

4571-24-8

The general procedure for the synthesis of 1-bromo-2,5-dichlorobenzene and 1,4-dibromo-2,5-dichlorobenzene from 1,4-dichlorobenzene was as follows: 147.0 g (1.00 mol) of 1,4-dichlorobenzene was accurately weighed in a reactor, 515 g of carbon tetrachloride was added as a solvent, and dissolved by stirring. Subsequently, 7.35 g of anhydrous aluminum chloride was added as a catalyst and after stirring for 15 minutes, the reaction system was warmed up to 35°C. At this temperature, 105.6 g (0.66 mol) of bromine was started to be added dropwise at a constant drop rate and the dropwise process lasted for 9 hours to complete. Upon completion of the reaction, the reaction was terminated by adding 200.0 g of 5% mass fraction sodium bisulfite solution to the reaction mixture until the mixture became colorless. After standing and layering, the organic phase was separated and the resulting carbon tetrachloride layer was concentrated. Ultimately, 73.0 g (0.50 mol) of unreacted 1,4-dichlorobenzene, 111.5 g (0.48 mol) of 1-bromo-2,5-dichlorobenzene and 7.1 g (0.02 mol) of 1,4-dibromo-2,5-dichlorobenzene were obtained by distillation.

References

[1] Green Chemistry, 2012, vol. 14, # 9, p. 2380 - 2383
[2] Patent: CN105801334, 2016, A. Location in patent: Paragraph 0066

1,4-Dibromo-2,5-dichlorobenzene Preparation Products And Raw materials

Raw materials

Preparation Products

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4571-24-8, 1,4-Dibromo-2,5-dichlorobenzeneRelated Search:

1,4-Dibromo-2,5-dichlorobenzene

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4571-24-8