ChemicalBook > CAS DataBase List > 1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE

1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE

Product Name
1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE
CAS No.
875664-38-3
Chemical Name
1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE
Synonyms
2-BROMO-4,5-DIFLUOROTOLUENE;2-Bromo-4,5-difluorotoluene >4,5-DIFLUORO-2-METHYLBROMOBENZENE;1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE;1-brommo-4,5-difluoro-2-methyl-benzene;Benzene, 1-bromo-4,5-difluoro-2-methyl-
CBNumber
CB0309873
Molecular Formula
C7H5BrF2
Formula Weight
207.02
MOL File
875664-38-3.mol
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1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE Property

Boiling point:
183.5±35.0 °C(Predicted)
Density 
1.588±0.06 g/cm3(Predicted)
refractive index 
1.508
storage temp. 
Sealed in dry,Room Temperature
form 
clear liquid
color 
Colorless to Almost colorless
InChIKey
FKEURBCLFHOBDM-UHFFFAOYSA-N
CAS DataBase Reference
875664-38-3(CAS DataBase Reference)
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Safety

Risk Statements 
20/21/22-36/37/38
Safety Statements 
26-36/37/39
HS Code 
2904990090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H227Combustible liquid

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

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

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

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

P403+P235Store in a well-ventilated place. Keep cool.

P405Store locked up.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TCI Chemical
Product number
B4129
Product name
2-Bromo-4,5-difluorotoluene
Purity
>98.0%(GC)
Packaging
1g
Price
$34
Updated
2025/07/31
TCI Chemical
Product number
B4129
Product name
2-Bromo-4,5-difluorotoluene
Purity
>98.0%(GC)
Packaging
5g
Price
$107
Updated
2025/07/31
TRC
Product number
B700515
Product name
2-Bromo-4,5-difluorotoluene
Packaging
10mg
Price
$45
Updated
2021/12/16
Biosynth Carbosynth
Product number
FB67410
Product name
2-Bromo-4,5-difluorotoluene
Packaging
5G
Price
$100
Updated
2021/12/16
Biosynth Carbosynth
Product number
FB67410
Product name
2-Bromo-4,5-difluorotoluene
Packaging
25g
Price
$375
Updated
2021/12/16
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1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE Chemical Properties,Usage,Production

Synthesis

2927-34-6

875664-38-3

Step 1: Synthesis of 1-bromo-4,5-difluoro-2-methylbenzene (16). Bromine (Br2) (40 g, 250 mmol) was added slowly and dropwise to a reaction flask containing 3,4-difluorotoluene (15) (27 g, 210 mmol) and iron powder (600 mg, 10 mmol) under ice bath conditions. The reaction mixture was slowly warmed to room temperature with stirring and the reaction was continued for 12 hours. Upon completion of the reaction, the reaction was quenched by the addition of water and the mixture was extracted with ether. The combined organic layers were washed sequentially with sodium thiosulfate solution and saturated brine and dried over anhydrous sodium sulfate (Na2SO4). The ether was removed by concentration under reduced pressure to give the target product 1-bromo-4,5-difluoro-2-methylbenzene (16) (36 g, 83% yield). 1H NMR (400 MHz, DMSO-d6): δ 7.78 (t, 1H), 7.52 (t, 1H), 2.29 (s, 3H).

References

[1] Patent: WO2017/4608, 2017, A1. Location in patent: Paragraph 0133
[2] Patent: US2011/112158, 2011, A1. Location in patent: Page/Page column 9

1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE Preparation Products And Raw materials

Raw materials

Preparation Products

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1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE Suppliers

Carbosynth
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View Lastest Price from 1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE manufacturers

Zhuozhou Wenxi import and Export Co., Ltd
Product
1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE 875664-38-3
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-11
Zhuozhou Wenxi import and Export Co., Ltd
Product
2-Bromo-4,5-difluorotoluene 875664-38-3
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-06-27
Career Henan Chemical Co
Product
1-BROMO-4,5-DIFLUORO-2-METHYL-BENZENE 875664-38-3
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
100KG
Release date
2020-01-10