ChemicalBook > CAS DataBase List > 5-bromo-4-fluoro-1H-indazole

5-bromo-4-fluoro-1H-indazole

Product Name
5-bromo-4-fluoro-1H-indazole
CAS No.
1082041-85-7
Chemical Name
5-bromo-4-fluoro-1H-indazole
Synonyms
Orforglipron Impurity 6;Orforglipron impurity 31;5-Bromo-4-fluoro-Indazole;5-bromo-4-fluoro-1H-indazole;1H-Indazole,5-broMo-4-fluoro-
CBNumber
CB22594615
Molecular Formula
C7H4BrFN2
Formula Weight
215.02
MOL File
1082041-85-7.mol
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5-bromo-4-fluoro-1H-indazole Property

Boiling point:
332.2±22.0 °C(Predicted)
Density 
1.861±0.06 g/cm3(Predicted)
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
pka
11.95±0.40(Predicted)
form 
solid
color 
Off-white to brown
InChI
InChI=1S/C7H4BrFN2/c8-5-1-2-6-4(7(5)9)3-10-11-6/h1-3H,(H,10,11)
InChIKey
YJOQUFUSNSCGHN-UHFFFAOYSA-N
SMILES
N1C2=C(C(F)=C(Br)C=C2)C=N1
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Safety

HS Code 
2933998090
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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

H335May cause respiratory irritation

Precautionary statements

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

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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N-Bromosuccinimide Price

TRC
Product number
B803483
Product name
5-Bromo-4-fluoro-1H-indazole
Packaging
10mg
Price
$45
Updated
2021/12/16
TRC
Product number
B803483
Product name
5-Bromo-4-fluoro-1H-indazole
Packaging
100mg
Price
$240
Updated
2021/12/16
Apolloscientific
Product number
PC500202
Product name
5-Bromo-4-fluoro-1H-indazole
Purity
95%
Packaging
250mg
Price
$62
Updated
2021/12/16
Apolloscientific
Product number
PC500202
Product name
5-Bromo-4-fluoro-1H-indazole
Purity
95%
Packaging
1g
Price
$97
Updated
2021/12/16
AK Scientific
Product number
Y5170
Product name
5-Bromo-4-fluoro-1H-indazole
Packaging
1g
Price
$180
Updated
2021/12/16
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5-bromo-4-fluoro-1H-indazole Chemical Properties,Usage,Production

Uses

5-Bromo-4-fluoro-1H-indazole is a chemical intermediate that can be used to synthesize 3-fluoro-2-methylaniline. 

Preparation

5-bromo-4-fluoro-1H-indazole can be obtained by the bromination of 4,5-dichloroindazole with NBS as a reagent.

Synthesis

127408-03-1

1082041-85-7

General procedure for the synthesis of 5-bromo-4-fluoro-1H-indazole from 4-bromo-3-fluoro-2-methylaniline: to a stirred solution of 4-bromo-3-fluoro-2-methylaniline (15.0 g, 73.5 mmol) in acetic acid (200 mL) was added sodium nitrite (10 g, 147 mmol) in batches at 10 °C. The reaction mixture was stirred at room temperature for 16 hours. Upon completion of the reaction, a 50% aqueous NaOH solution was added dropwise to the reaction mixture under vigorous stirring at -10 °C until the pH reached 7-8. Subsequently, the mixture was extracted with ethyl acetate. The organic layer was dried with anhydrous sodium sulfate and concentrated under reduced pressure to give the crude product. The crude product was purified by silica gel column chromatography (eluent: 0-40% hexane solution of ethyl acetate) to afford 5-bromo-4-fluoro-1H-indazole (10 g, 63% yield) as an off-white solid.LCMS retention time was 3.03 min and the molecular ion peak MH+ 214.1H NMR (400 MHz, CDCl3) δ 10.44 (broad single peak, 1H), δ 8.14 (single peak, 1H), 7.49-7.45 (multiple peaks, 1H), 7.19 (double peak, J = 8.76Hz, 1H).

References

[1] Patent: WO2018/130853, 2018, A1. Location in patent: Page/Page column 26
[2] Patent: US2012/71535, 2012, A1. Location in patent: Page/Page column 51
[3] Patent: WO2013/142266, 2013, A1. Location in patent: Paragraph 00487
[4] Journal of Medicinal Chemistry, 2014, vol. 57, # 12, p. 5129 - 5140
[5] Patent: US2016/347717, 2016, A1. Location in patent: Page/Page column 0293; 0294

5-bromo-4-fluoro-1H-indazole Preparation Products And Raw materials

Raw materials

Preparation Products

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5-bromo-4-fluoro-1H-indazole Suppliers

Aikon International Limited
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025-58859352 18068836627
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China
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Carbott PharmTech Inc.
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Tetranov Biopharm
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Accela ChemBio Co.,Ltd.
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ZEROSCHEM.CO.,LTD.
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Hangzhou Sage Chemical Co., Ltd.
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China
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Shanghai Jian Chao Chemical Technology Co., Ltd.
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Shanghai Arbor Chemical Co., Ltd.
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021-60451683 15021268886
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China
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Tianjin Ji Ping Jia Chemical Co., Ltd.
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18622448868
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022-58620773
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jpjchem@163.com
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China
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Shanghai Devinchem Ltd
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027-65318838 13646286950
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China
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View Lastest Price from 5-bromo-4-fluoro-1H-indazole manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
5-bromo-4-fluoro-1H-indazole 1082041-85-7
Price
US $0.00-0.00/KG
Min. Order
5mg
Purity
99%HPLC
Supply Ability
2000tons
Release date
2020-01-06
Career Henan Chemical Co
Product
1H-Indazole,5-broMo-4-fluoro- 1082041-85-7
Price
US $1.00/KG
Min. Order
1KG
Purity
85.0-99.8%
Supply Ability
200kgs
Release date
2020-01-16