ChemicalBook > CAS DataBase List > 1,5-DIBROMO-2,4-DIFLUOROBENZENE

1,5-DIBROMO-2,4-DIFLUOROBENZENE

Product Name
1,5-DIBROMO-2,4-DIFLUOROBENZENE
CAS No.
28342-75-8
Chemical Name
1,5-DIBROMO-2,4-DIFLUOROBENZENE
Synonyms
1.3-Dibrom-4.6-difluorben;1.3-Dibrom-4.6-difluorbenzol;2,4-Difluoro-1,5-dibromobenzene;1,3-DibroMo-4,6-difluorobenzene;1,5-DIBROMO-2,4-DIFLUOROBENZENE;Benzene, 1,5-dibromo-2,4-difluoro-;1,5-Dibromo-2,4-difluorobenzene，98%;1,5-Dibromo-2,4-difluorobenzene 98%
CBNumber
CB31496940
Molecular Formula
C6H2Br2F2
Formula Weight
271.88
MOL File
28342-75-8.mol
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1,5-DIBROMO-2,4-DIFLUOROBENZENE Property

Melting point:
29.0 to 33.0 °C
Boiling point:
100℃ (25 Torr)
Density 
2.087±0.06 g/cm3(Predicted)
storage temp. 
Keep in dark place,Sealed in dry,2-8°C
form 
powder to lump
color 
White to Almost white
InChI
InChI=1S/C6H2Br2F2/c7-3-1-4(8)6(10)2-5(3)9/h1-2H
InChIKey
PPUZKAPOPPRMFE-UHFFFAOYSA-N
SMILES
C1(Br)=CC(Br)=C(F)C=C1F
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Safety

HS Code 
2903998090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P271Use only outdoors or in a well-ventilated area.

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

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N-Bromosuccinimide Price

TCI Chemical
Product number
D5259
Product name
1,5-Dibromo-2,4-difluorobenzene
Purity
>98.0%(GC)
Packaging
1g
Price
$35
Updated
2025/07/31
TRC
Product number
D425388
Product name
1,5-Dibromo-2,4-difluorobenzene
Packaging
250mg
Price
$55
Updated
2021/12/16
AK Scientific
Product number
Y5121
Product name
1,3-Dibromo-4,6-difluorobenzene
Packaging
10g
Price
$94
Updated
2021/12/16
SynQuest Laboratories
Product number
1600-B-28
Product name
1,5-Dibromo-2,4-difluorobenzene
Purity
98%
Packaging
25g
Price
$125
Updated
2021/12/16
Apolloscientific
Product number
PC9091
Product name
1,5-Dibromo-2,4-difluorobenzene
Purity
98%
Packaging
100g
Price
$275
Updated
2021/12/16
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1,5-DIBROMO-2,4-DIFLUOROBENZENE Chemical Properties,Usage,Production

Synthesis

348-57-2

28342-75-8

General procedure for the synthesis of 1,5-dibromo-2,4-difluorobenzene from 2,4-difluorobromobenzene: Iron powder (3.15 g, 56 mmol) was added to a solution of 1-bromo-2,4-difluorobenzene (19.3 mL, 171 mmol) in dichloromethane (100 mL). A dichloromethane (25 mL) solution of bromine (11 mL, 214 mmol) was slowly added dropwise to the stirred suspension over 30 minutes. The reaction mixture was stirred overnight at room temperature. Subsequently, the reaction mixture was slowly poured into saturated aqueous sodium thiosulfate solution (200 mL) and stirring was continued for 30 minutes at room temperature. The reaction mixture was extracted with dichloromethane (3 x 80 mL). The organic phases were combined, washed with brine, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure to give 1,5-dibromo-2,4-difluorobenzene (40 g, 86% yield) as a brown oil.1H NMR (500 MHz, chloroform-d) δ 7.79 (t, J = 7.0 Hz, 1H), 7.00 (t, J = 8.2 Hz, 1H).

References

[1] Journal of Organic Chemistry, 2004, vol. 69, # 6, p. 1967 - 1971
[2] Patent: WO2012/162334, 2012, A1. Location in patent: Page/Page column 38
[3] Patent: WO2014/98831, 2014, A1. Location in patent: Page/Page column 26; 27
[4] Nucleosides, Nucleotides and Nucleic Acids, 2001, vol. 20, # 1-2, p. 11 - 40
[5] Patent: EP1961743, 2008, A1. Location in patent: Page/Page column 19

1,5-DIBROMO-2,4-DIFLUOROBENZENE Preparation Products And Raw materials

Raw materials

Preparation Products

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1,5-DIBROMO-2,4-DIFLUOROBENZENE Suppliers

Americas 1 China 139 Europe 1 India 2 Japan 1 United Kingdom 2 United States 9 Global 155
TCI Europe
Tel
320-37350700
Fax
+32 (0)37350701
Email
sales@tcieurope.eu
Country
Europe
ProdList
23671
Advantage
75
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View Lastest Price from 1,5-DIBROMO-2,4-DIFLUOROBENZENE manufacturers

Henan Fengda Chemical Co., Ltd
Product
1,5-DIBROMO-2,4-DIFLUOROBENZENE 28342-75-8
Price
US $50.00-1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2023-12-22
Career Henan Chemical Co
Product
1,5-DIBROMO-2,4-DIFLUOROBENZENE 28342-75-8
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
100kg
Release date
2019-07-12

28342-75-8, 1,5-DIBROMO-2,4-DIFLUOROBENZENERelated Search:


  • 1,5-DIBROMO-2,4-DIFLUOROBENZENE
  • 1,5-Dibromo-2,4-difluorobenzene 98%
  • 1,3-DibroMo-4,6-difluorobenzene
  • 2,4-Difluoro-1,5-dibromobenzene
  • 1.3-Dibrom-4.6-difluorbenzol
  • 1.3-Dibrom-4.6-difluorben
  • Benzene, 1,5-dibromo-2,4-difluoro-
  • 1,5-Dibromo-2,4-difluorobenzene，98%
  • 28342-75-8
  • Bromine Compounds
  • Fluorine Compounds