Cas 157650-20-9,2-(3,4-bis(pivaloyloxy)phenyl)-5-hydroxy-4-oxo-4H-chromene-3,7-diyl bis(2,2-dimethylpropanoate)

157650-20-9

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Basic information

Product Name: 2-(3,4-bis(pivaloyloxy)phenyl)-5-hydroxy-4-oxo-4H-chromene-3,7-diyl bis(2,2-dimethylpropanoate)
Synonyms: 2-(3,4-bis(pivaloyloxy)phenyl)-5-hydroxy-4-oxo-4H-chromene-3,7-diyl bis(2,2-dimethylpropanoate)
CAS NO:157650-20-9
Molecular Formula:
Molecular Weight: 638.712
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 2-(3,4-bis(pivaloyloxy)phenyl)-5-hydroxy-4-oxo-4H-chromene-3,7-diyl bis(2,2-dimethylpropanoate)(CAS DataBase Reference)
NIST Chemistry Reference: 2-(3,4-bis(pivaloyloxy)phenyl)-5-hydroxy-4-oxo-4H-chromene-3,7-diyl bis(2,2-dimethylpropanoate)(157650-20-9)
EPA Substance Registry System: 2-(3,4-bis(pivaloyloxy)phenyl)-5-hydroxy-4-oxo-4H-chromene-3,7-diyl bis(2,2-dimethylpropanoate)(157650-20-9)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 157650-20-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 157650-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,6,5 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 157650-20:
(8*1)+(7*5)+(6*7)+(5*6)+(4*5)+(3*0)+(2*2)+(1*0)=139
139 % 10 = 9
So 157650-20-9 is a valid CAS Registry Number.

157650-20-9Upstream product

157650-20-9Downstream Products

157650-20-9Relevant academic research and scientific papers

Effects of quercetin and artemetin prenylation on bioavailability and bioactivity

Salamone, Stefano,Nieddu, Mariella,Khalili, Adil,Sansaro, Andrea,Bombardelli, Ezio,Rosa, Antonella,Pollastro, Federica

, (2021/09/27)

Flavonoids are a huge class of polyphenolic compounds ubiquitous in higher plants, in most food and beverages of natural origin. They could be considered as dietary phenols, which exert many health-promoting effects on human and animal physiology with a w

Regioselective O-derivatization of quercetin via ester intermediates. An improved synthesis of rhamnetin and development of a new mitochondriotropic derivative

Mattarei, Andrea,Biasutto, Lucia,Rastrelli, Federico,Garbisa, Spiridione,Marotta, Ester,Zoratti, Mario,Paradisi, Cristina

experimental part, p. 4722 - 4736 (2010/10/20)

The regioselective synthesis of several quercetin (3,3',4',5,7-pentahydroxy flavone) tetraesters bearing a single free OH on 5-C was achieved in good yield by proper choice of reaction conditions using common esterification procedures. Tetracetylated quercetin with the free OH on 7-C was selectively obtained instead via imidazole-promoted deacylation of the corresponding pentaester. Unambiguous structural characterization of the two isomeric tetraacetyl quercetin derivatives was obtained by combined HSQC and HMBC 2D-NMR analysis. These molecules can be used as starting materials for the regioselective synthesis of other derivatives. High yield syntheses of the natural polyphenol rhamnetin (7-O-methylquercetin) and of the new mitochondriotropic compound 7-(4-triphenylphosphoniumbutyl) quercetin iodide are reported as examples.

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