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

J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
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76
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
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15838
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Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
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TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
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Ark Pharm, Inc.
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847-367-3680
Fax
847-367-3681
Email
sales@arkpharminc.com
Country
United States
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1670
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Energy Chemical
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021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
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China
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44801
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Shijiazhuang Sdyano Fine Chemical Co., Ltd.
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0311-89250318 031166536426
Fax
4000311741
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master@sjzsdyn.com
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China
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2807
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Wuhan Chemwish Technology Co., Ltd
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86-027-67849912
Fax
86-027-87531808
Email
sales@chemwish.com
Country
China
ProdList
35896
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56
Shanghai Harvest Chemical Industrial Co., Ltd.
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021-31038972,31038973 17321035817
Fax
+86-21-51385350
Email
sales@harvest-chem.com
Country
China
ProdList
2816
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Beijing Eternalchem Co,. Ltd.
Tel
010-59484199 18611897322
Email
sales@eternalchem.com
Country
China
ProdList
4383
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60
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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