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The chemical "5,7-dihydroxy-8-[2-hydroxy-5-(5-hydroxy-7-methoxy-4-oxo-4H-1-benzopyran-2-yl)phenyl]-2-(4-hydroxyphenyl)-4-benzopyrone" is a complex organic compound with a molecular formula of C30H20O13. It is a type of flavonoid, specifically a flavone, which are known for their antioxidant properties and are commonly found in plants. This particular compound is characterized by its unique structure, featuring multiple hydroxyl groups and a benzopyrone core. It is derived from the flavonoid family and is known for its potential biological activities, such as antioxidant and anti-inflammatory effects. The compound's structure allows it to interact with various biological targets, making it a subject of interest in the field of natural product chemistry and pharmacology.

21763-71-3

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Basic information
1. Product Name: 5,7-dihydroxy-8-[2-hydroxy-5-(5-hydroxy-7-methoxy-4-oxo-4H-1-benzopyran-2-yl)phenyl]-2-(4-hydroxyphenyl)-4-benzopyrone
2. Synonyms: 5,7-dihydroxy-8-[2-hydroxy-5-(5-hydroxy-7-methoxy-4-oxo-4H-1-benzopyran-2-yl)phenyl]-2-(4-hydroxyphenyl)-4-benzopyrone;3''',8-Biflavone, 4',4''',5,5'',7-pentahydroxy-7''-methoxy- (8ci);4H-1-Benzopyran-4-one, 5,7-dihydroxy-8-(2-hydroxy-5-(5-hydroxy-7-methoxy-4-oxo-4H-1-benzopyran-2-yl)phenyl)-2-(4-hydroxyphenyl)-;5,7-Dihydroxy-8-(2-hydroxy-5-(5-hydroxy-7-methoxy-4-oxo-4H-1-benzopyran-2-yl)phenyl)-2-(4-hydroxyphenyl)-4-benzopyrone;7-o-Methylamentoflavone;Brakerin;Brn 1445484;Einecs 244-574-2
3. CAS NO:21763-71-3
4. Molecular Formula: C₃₁H₂₀O₁₀
5. Molecular Weight: 552.4845
6. EINECS: 244-574-2
7. Product Categories: N/A
8. Mol File: 21763-71-3.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 901.2°Cat760mmHg
3. Flash Point: 302.6°C
4. Appearance: /
5. Density: 1.576g/cm³
6. Vapor Pressure: 1.81E-34mmHg at 25°C
7. Refractive Index: 1.75
8. Storage Temp.: N/A
9. Solubility: N/A
10. CAS DataBase Reference: 5,7-dihydroxy-8-[2-hydroxy-5-(5-hydroxy-7-methoxy-4-oxo-4H-1-benzopyran-2-yl)phenyl]-2-(4-hydroxyphenyl)-4-benzopyrone(CAS DataBase Reference)
11. NIST Chemistry Reference: 5,7-dihydroxy-8-[2-hydroxy-5-(5-hydroxy-7-methoxy-4-oxo-4H-1-benzopyran-2-yl)phenyl]-2-(4-hydroxyphenyl)-4-benzopyrone(21763-71-3)
12. EPA Substance Registry System: 5,7-dihydroxy-8-[2-hydroxy-5-(5-hydroxy-7-methoxy-4-oxo-4H-1-benzopyran-2-yl)phenyl]-2-(4-hydroxyphenyl)-4-benzopyrone(21763-71-3)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 21763-71-3(Hazardous Substances Data)

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21763-71-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21763-71-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,7,6 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21763-71:
(7*2)+(6*1)+(5*7)+(4*6)+(3*3)+(2*7)+(1*1)=103
103 % 10 = 3
So 21763-71-3 is a valid CAS Registry Number.

InChI:InChI=1/C31H20O10/c1-39-17-9-20(34)29-23(37)12-26(40-27(29)10-17)15-4-7-19(33)18(8-15)28-21(35)11-22(36)30-24(38)13-25(41-31(28)30)14-2-5-16(32)6-3-14/h2-13,32-36H,1H3

21763-71-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name	5,7-dihydroxy-8-[2-hydroxy-5-(5-hydroxy-7-methoxy-4-oxochromen-2-yl)phenyl]-2-(4-hydroxyphenyl)chromen-4-one

1.2 Other means of identification

Product number	-
Other names	7-O-methylamenthoflavone

1.3 Recommended use of the chemical and restrictions on use

Identified uses	For industry use only.
Uses advised against	no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number	-
Service hours	Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:21763-71-3 SDS

21763-71-3Upstream product

21763-71-3Downstream Products

21763-71-3Relevant academic research and scientific papers

A new strategy for the synthesis of biflavonoids via arylboronic acids

Muller, Dominique,Fleury, Jean-Pierre

, p. 2229 - 2232 (2007/10/02)

Amentoflavone derivatives were prepared by catalytic coupling of 8-flavone-boronic acids with iodoflavones. 3-Arylflavones, as biflavonoid synthon, are accessible by the method.

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