ChemicalBook > CAS DataBase List > 4H-1-BENZOPYRAN-4-ONE

4H-1-BENZOPYRAN-4-ONE

Product Name: 4H-1-BENZOPYRAN-4-ONE
CAS No.: 15485-80-0
Chemical Name: 4H-1-BENZOPYRAN-4-ONE
Synonyms: 7-Hydroxy-4’-nitroisoflavone;7-Hydroxy-4'-nitroisoflavone;7-Hydroxy-4'-nitroisoflavone,98%;4H-1-Benzopyran-4-one, 7-hydroxy-3-(4-nitrophenyl)-
CBNumber: CB61013384
Molecular Formula: C15H9NO5
Formula Weight: 283.24
MOL File: 15485-80-0.mol

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4H-1-BENZOPYRAN-4-ONE Property

Melting point:: 290-292℃
Boiling point:: 530.8±50.0 °C(Predicted)
Density: 1.494±0.06 g/cm3(Predicted)
storage temp.: 2-8°C
pka: 6.68±0.20(Predicted)
form: Powder
color: Pale yellow
Water Solubility: Slightly soluble in water.

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

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

AK Scientific

Product number: 7782AA
Product name: 7-Hydroxy-4'-nitroisoflavone
Packaging: 5g
Price: $107
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: PXT0001170
Product name: 7-HYDROXY-4'-NITROISOFLAVONE
Purity: 95.00%
Packaging: 5G
Price: $139.8
Updated: 2021/12/16

Ambeed

Product number: A152233
Product name: 7-Hydroxy-4'-nitroisoflavone
Purity: 97%
Packaging: 250mg
Price: $7
Updated: 2021/12/16

Ambeed

Product number: A152233
Product name: 7-Hydroxy-4'-nitroisoflavone
Purity: 97%
Packaging: 1g
Price: $16
Updated: 2021/12/16

Ambeed

Product number: A152233
Product name: 7-Hydroxy-4'-nitroisoflavone
Purity: 97%
Packaging: 5g
Price: $43
Updated: 2021/12/16

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4H-1-BENZOPYRAN-4-ONE Chemical Properties,Usage,Production

Uses

7-Hydroxy-4'-nitroisoflavone is used in the synthesis of iso flavones, Synthesis of daidzin, soflavone amide derivatives.

Synthesis

104-03-0

108-46-3

15485-80-0

In the first reaction flask, resorcinol (0.72 g, 6.5 mmol), p-nitrophenylacetic acid (1.0 g, 6.0 mmol), and BF3/Et2O (10 mL) were added and the reaction was stirred for 90 min at 75 °C. Upon completion of the reaction, the reaction mixture was cooled to below 10 °C and DMF (10 mL) was slowly added under stirring. In a second reaction flask, DMF (20 mL) was added, cooled to below 10 °C, PCl5 (2.0 g, 9 mmol) was added in batches and stirred at 55 °C for 30 min. After the reaction was completed, cooled to below 10 °C, the mixture in the first reaction flask was added slowly and the reaction was continued for 1 h at room temperature. Upon completion of the reaction, the reaction solution was poured into hot dilute hydrochloric acid (0.1 N) with stirring, the solid was precipitated, filtered, washed with water and dried. The crude product was recrystallized from methanol to give 0.36 g of product in 16.4% yield.MS (ESI): m/z = 284 [M + H]+.

References

[1] Patent: CN104672192, 2017, B. Location in patent: Paragraph 0050; 0051; 0052; 0053

4H-1-BENZOPYRAN-4-ONE Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 4H-1-BENZOPYRAN-4-ONE manufacturers

Career Henan Chemical Co

Product: 4H-1-BENZOPYRAN-4-ONE 15485-80-0
Price: US $8.80/KG
Min. Order: 1KG
Purity: 97%-99%
Supply Ability: 100kg
Release date: 2019-07-09

15485-80-0, 4H-1-BENZOPYRAN-4-ONERelated Search:

2-Hydroxy-5-nitrobenzonitrile 1-(2,4-DIHYDROXY-PHENYL)-2-(4-NITRO-PHENYL)-ETHANONE 4-NITROPHENYLACETONE 4H-1-BENZOPYRAN-4-ONE

7-Hydroxy-4’-nitroisoflavone

4H-1-Benzopyran-4-one, 7-hydroxy-3-(4-nitrophenyl)-

7-Hydroxy-4'-nitroisoflavone,98%

7-Hydroxy-4'-nitroisoflavone

15485-80-0

14585-80-0