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57296-14-7

57296-14-7

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57296-14-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57296-14-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,2,9 and 6 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57296-14:
(7*5)+(6*7)+(5*2)+(4*9)+(3*6)+(2*1)+(1*4)=147
147 % 10 = 7
So 57296-14-7 is a valid CAS Registry Number.

57296-14-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-(3,4-dimethoxyphenyl)-3,5-dihydroxy-6,7-dimethoxychromen-4-one

1.2 Other means of identification

Product number -
Other names Quercetagetin-6,7-3',4'-tetramethyl Ether

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:57296-14-7 SDS

57296-14-7Relevant articles and documents

FLAVONOIDS FROM ARTEMISIA LANATA

a D.,Collado, I. Gonzales,Macias, F. A.,Massanet, G. M.,Luis, Rodriguez F.

, p. 1502 - 1504 (1986)

A new flavonoid, gossypetin-7,8,3',4'-tetramethyl ether (3,5-dihydroxy-7,8,3',4'-tetramethoxyflavone) was isolated and its structure elucidated by chemical and spectroscopic methods.The known flavonoids 5-hydroxy-6,7,3',4'-tetramethoxyflavone and artemeti

STUDIES OF THE SELECTIVE O-ALKYLATION AND DEALKYLATION OF FLAVONOIDS. XII. A NEW, CONVENIENT METHOD FOR SYNTHESIZING 3,5-DIHYDROXY-6,7-DIMETHOXYFLAVONES FROM 3,5,6,7-TETRAMETHOXYFLAVONES

Horie, Tokunaru,Kawamura, Yasuhiko,Tsukayama, Masao,Yoshizaki, Shiro

, p. 1216 - 1220 (2007/10/02)

The 5-methoxy group on 3,5,6,7-tetramethoxyflavones and the 3-methoxy group on 3,6,7-trimethoxy-5-tosyloxy-flavones were selectively cleaved with anhydrous aluminum bromide in acetonitrile under controlled conditions without the cleavage of benzyloxy groups on the B ring.By the application of these reactions, seven 3,5-dihydroxy-6,7-dimethoxyflavones were easily synthesized from the corresponding 3,5,6,7-tetramethoxyflavones which were synthesized from 3,6-dihydroxy-2,4ω-trimethoxycetophenone by means of the Allan-Robinson reaction followed by methylation.Keywords: Allan-Robinson reaction ; selective demethylation; 3,5,6,7-tetramethoxyflavone; 5-hydroxy-3,6,7-trimethoxyflavone; 6-hydroxy-3,5,7-trimethoxyflavone; 5-tosyloxyflavone; 5,6-dihydroxy-3,7-dimethoxyflavone; 3,5-dihydroxy-6,7-dimethoxyflavone, 3,5-diacetoxy-6,7-dimethoxyflavone

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