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(+)-ent-Chromazonarol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

57457-77-9

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57457-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57457-77-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,5 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57457-77:
(7*5)+(6*7)+(5*4)+(4*5)+(3*7)+(2*7)+(1*7)=159
159 % 10 = 9
So 57457-77-9 is a valid CAS Registry Number.

57457-77-9Relevant academic research and scientific papers

Enantiospecific Syntheses of Hongoquercins A and B and Chromazonarol

Dethe, Dattatraya H.,Murhade, Ganesh M.,Dherange, Balu D.,Sau, Susanta Kumar

, p. 1143 - 1150 (2017)

An environmentally benign and highly atom-economical catalytic method for Friedel–Crafts alkylation and diastereoselective C–O bond formation has been developed. The scope and generality of this reaction is illustrated by the synthesis of chromazonarol, hongoquercins A and B, and their analogues.

New access to sesquiterpene hydroquinones: Synthesis of (+)-ent-chromazonarol

Villamizar, Jose,Plata, Federico,Canudas, Nieves,Tropper, Eleonora,Fuentes, Juan,Orcajo, Angel

, p. 311 - 320 (2007/10/03)

A facile access to optically active (+)-ent-chromazonarol ent-1, isolated from the sponge Disidea pallescens, is reported from commercially available (+)-manool 4. Copyright Taylor & Francis LLC.

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