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7-nitro-2-phenyl-chromen-4-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

35820-45-2

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35820-45-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 35820-45-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,5,8,2 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 35820-45:
(7*3)+(6*5)+(5*8)+(4*2)+(3*0)+(2*4)+(1*5)=112
112 % 10 = 2
So 35820-45-2 is a valid CAS Registry Number.

35820-45-2Relevant academic research and scientific papers

O-Heterocycles by the Cyclization of Side-Chain Bromomethoxylated 2'-Acetoxychalcones

Donnelly, John A.,Higginbotham, Clement L.

, p. 83 - 87 (2007/10/02)

The title chalcone derivatives react with aqueous sodium hydroxide of various concentrations to form aurones as the major product, together with small amounts of flavones.However, the introduction of 4'-nitro or 4'-chloro substituents resulted in the formation of flavones as the major product.

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