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636997-50-7

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636997-50-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 636997-50-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,6,9,9 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 636997-50:
(8*6)+(7*3)+(6*6)+(5*9)+(4*9)+(3*7)+(2*5)+(1*0)=217
217 % 10 = 7
So 636997-50-7 is a valid CAS Registry Number.

636997-50-7Relevant academic research and scientific papers

Novel and efficient route for the synthesis of 4-Aryl-substituted 2(5H)-furanones

Thombare, Pravin,Desai, Jigar,Argade, Anil,Gite, Sanjay,Shah, Kiran,Pavase, Laxmikant,Patel, Pankaj

experimental part, p. 2423 - 2429 (2009/12/03)

4-Aryl-substituted 2(5H)-furanones were prepared by reaction of diethylphosphono acetic acid and phenacyl bromides, followed by an intramolecular Horner-Emmons-type cyclization. Both the reactions were carried out in situ to give the desired 4-aryl substituted 2(5H)-furanone derivatives.

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