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N-(2-oxochromen-3-carbonyl)-N'-isopropylidene-hydrazine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

204185-63-7

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204185-63-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204185-63-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,1,8 and 5 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 204185-63:
(8*2)+(7*0)+(6*4)+(5*1)+(4*8)+(3*5)+(2*6)+(1*3)=107
107 % 10 = 7
So 204185-63-7 is a valid CAS Registry Number.

204185-63-7Downstream Products

204185-63-7Relevant academic research and scientific papers

Conversion of coumarins accompanied by opening and recyclization of the lactone ring. 1. Study of the reaction of 3-ethoxycarbonyl(3-acyl)coumarins with cyanoacetylhydrazine and its derivatives

Nemeryuk,Dimitrova,Anisimova,Sedov,Solov'eva,Traven

, p. 1454 - 1465 (2007/10/03)

A stepwise sequence for the interaction of 3-ethoxycarbonyl(acyl)coumarins with cyanoacetylhydrazine, its N-acetyl and N-isopropylidene derivatives, leading to the formation of 3-cyanocoumarins, is proposed and demonstrated. It was established that the 3-cyanocoumarins formed are also able to participate in further conversions by a type of Michael reaction.

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