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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Safety

Hazard Codes: Xn
Risk Statements: 22
WGK Germany: 3
HazardClass: IRRITANT
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.

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

Biosynth Carbosynth

Product number: FB52140
Product name: 7-Bromo-1H-indazole
Packaging: 250mg
Price: $60
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

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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7-Bromo-1H-indazole Suppliers

China 185 Germany 2 India 3 United Kingdom 5 United States 23 Global 218

J & K SCIENTIFIC LTD.

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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

53857-58-2, 7-Bromo-1H-indazoleRelated Search:

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T56 BMNJ IE

4-amino-3-(3,4,9-trimethoxyphenyl)butanoicacid

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53857-58-2

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