ChemicalBook > CAS DataBase List > 7-bromo-4H-chromen-4-one
7-bromo-4H-chromen-4-one
- Product Name
- 7-bromo-4H-chromen-4-one
- CAS No.
- 168759-60-2
- Chemical Name
- 7-bromo-4H-chromen-4-one
- Synonyms
- 7-Bromochromone;7-Bromochromen-4-one;7-bromo-4H-chromen-4-one;7-Bromo-4H-1-benzopyran-4-one;4H-1-Benzopyran-4-one, 7-broMo-;1,2-Ethanediamine,N1-(5-methylpropyl)-
- CBNumber
- CB92513981
- Molecular Formula
- C9H5BrO2
- Formula Weight
- 225.04
- MOL File
- 168759-60-2.mol
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7-bromo-4H-chromen-4-one Property
- Melting point:
- 154-159°C
- Boiling point:
- 306.0±42.0 °C(Predicted)
- Density
- 1.688±0.06 g/cm3(Predicted)
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- form
- solid
- Appearance
- White to off-white Solid
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Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H319Causes serious eye irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P337+P313IF eye irritation persists: Get medical advice/attention.
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- 732818
- Product name
- 7-Bromochromone
- Packaging
- 250mg
- Price
- $60.3
- Updated
- 2023/06/20
TRC
- Product number
- B686168
- Product name
- 7-Bromo-4H-chromen-4-one
- Packaging
- 500mg
- Price
- $175
- Updated
- 2021/12/16
Biosynth Carbosynth
- Product number
- FB141433
- Product name
- 7-Bromo-4H-chromen-4-one
- Packaging
- 100mg
- Price
- $53
- Updated
- 2021/12/16
Biosynth Carbosynth
- Product number
- FB141433
- Product name
- 7-Bromo-4H-chromen-4-one
- Packaging
- 250mg
- Price
- $105
- Updated
- 2021/12/16
AK Scientific
- Product number
- 8618AA
- Product name
- 7-Bromo-4H-chromen-4-one
- Packaging
- 1g
- Price
- $154
- Updated
- 2021/12/16
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7-bromo-4H-chromen-4-one Chemical Properties,Usage,Production
Synthesis
945724-02-7
168759-60-2
General procedure for the synthesis of 7-bromo-4H-chromen-4-one from (E)-1-(4-bromo-2-hydroxyphenyl)-3-(dimethylamino)prop-2-en-1-one: Concentrated hydrochloric acid (30 mL) was slowly added to a (E)-1-(4-bromo-2-hydroxyphenyl)-3-(dimethylamino)prop-2-en-1-one (10.4 g, 38.5 mmol) in a solution of dichloromethane (250 mL). The reaction mixture was heated to reflux for 30 minutes and then cooled to room temperature. The aqueous phase was extracted with dichloromethane (20 mL). The organic phases were combined, washed with saturated sodium bicarbonate solution (50 mL), dried over anhydrous sodium sulfate, and filtered. The solvent was removed by concentration under reduced pressure to give 7-bromo-4H-chromen-4-one (8.7 g, 38.5 mmol, 100% yield).
References
[1] Patent: WO2012/68234, 2012, A2. Location in patent: Page/Page column 629; 630
[2] Patent: WO2007/88450, 2007, A2. Location in patent: Page/Page column 22
[3] Journal of Medicinal Chemistry, 2016, vol. 59, # 22, p. 10228 - 10243
[4] Patent: US2009/202478, 2009, A1
7-bromo-4H-chromen-4-one Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 7-bromo-4H-chromen-4-one manufacturers
R&D Scientific Inc.
- Product
- 7-Bromochromone 168759-60-2
- Price
- US $520.00/g
- Min. Order
- 1g
- Purity
- 98
- Supply Ability
- 500 Kg
- Release date
- 2024-02-23
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