ChemicalBook > CAS DataBase List > 7-Bromo-1H-indazole
7-Bromo-1H-indazole
- Product Name
- 7-Bromo-1H-indazole
- CAS No.
- 53857-58-2
- Chemical Name
- 7-Bromo-1H-indazole
- Synonyms
- T56 BMNJ IE;7-BROMO-1H-INDAZOLE;1H-Indazole, 7-bromo-;7-Bromo-1H-indazole 97%;7-Bromo-1H-indazole;Ethanol,2-[[(9-methoxyphenyl)methyl]amino]-;4-amino-3-(3,4,9-trimethoxyphenyl)butanoicacid
- CBNumber
- CB9431010
- Molecular Formula
- C7H5BrN2
- Formula Weight
- 197.03
- MOL File
- 53857-58-2.mol
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7-Bromo-1H-indazole Property
- Melting point:
- 126-130 °C
- Boiling point:
- 333.8±15.0 °C(Predicted)
- Density
- 1.770±0.06 g/cm3(Predicted)
- storage temp.
- Sealed in dry,Room Temperature
- form
- powder
- pka
- 11.82±0.40(Predicted)
- color
- Yellow
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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.
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.
P405Store locked up.
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- 717088
- Product name
- 7-Bromo-1H-indazole
- Purity
- 97%
- Packaging
- 1g
- Price
- $79.2
- Updated
- 2023/06/20
TRC
- Product number
- B683753
- Product name
- 7-Bromo-1H-indazole
- Packaging
- 250mg
- Price
- $55
- Updated
- 2021/12/16
SynQuest Laboratories
- Product number
- 3H32-9-N0
- Product name
- 7-Bromo-1H-indazole
- Packaging
- 1g
- Price
- $24
- Updated
- 2021/12/16
Biosynth Carbosynth
- Product number
- FB52140
- Product name
- 7-Bromo-1H-indazole
- Packaging
- 250mg
- Price
- $60
- Updated
- 2021/12/16
Matrix Scientific
- Product number
- 046762
- Product name
- 7-Bromo-1H-indazole
- Purity
- >95%
- Packaging
- 1g
- Price
- $90
- Updated
- 2021/12/16
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7-Bromo-1H-indazole Chemical Properties,Usage,Production
Synthesis
21443-96-9
53857-58-2
The general procedure for the synthesis of 7-bromo-1H-indazole from 7-aminoindazole was as follows: 7-aminoindazole (3.45 g, 25.9 mmol) was dissolved in concentrated hydrobromic acid (25 mL), diluted with water (8.5 mL), and cooled to -10 °C. In another vessel, sodium nitrite (755 mg, 10.9 mmol) was dissolved in water (11.5 mL), cooled and slowly added to the above solution. Subsequently, solid sodium nitrite (1.14 g, 16.5 mmol) was added in batches. The reaction solution was stirred at -5°C for 15 minutes, and then a concentrated hydrobromic acid (11.5 mL) solution of cooled cuprous bromide (3.94 g, 27.5 mmol) was added dropwise over 15 minutes. The reaction mixture was stirred at room temperature for 2 hours and then neutralized with saturated sodium bicarbonate solution. The neutralized mixture was diluted with water (50 mL), filtered and the filter cake was washed with ethyl acetate (300 mL). The filtrate layer was separated and the aqueous layer was extracted with ethyl acetate (3 x 200 mL). The organic layers were combined, dried with anhydrous sodium sulfate and concentrated under reduced pressure to give 7-bromo-1H-indazole (1.88 g, 37% yield).
References
[1] Patent: US2006/270686, 2006, A1. Location in patent: Page/Page column 25-26
[2] Patent: US2008/280891, 2008, A1. Location in patent: Page/Page column 26
[3] Patent: WO2008/8059, 2008, A1. Location in patent: Page/Page column 65-66
7-Bromo-1H-indazole Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 7-Bromo-1H-indazole manufacturers
Career Henan Chemical Co
- Product
- 7-Bromo-1H-indazole 53857-58-2
- Price
- US $8.80/KG
- Min. Order
- 1KG
- Purity
- 97%-99%
- Supply Ability
- 100kg
- Release date
- 2019-07-04
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