Cas 123716-70-1,1-Benzoyl-3-phenyl-4-methyl-4,5-dihydropyrazole

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Check Digit Verification of cas no

The CAS Registry Mumber 123716-70-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,7,1 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 123716-70:
(8*1)+(7*2)+(6*3)+(5*7)+(4*1)+(3*6)+(2*7)+(1*0)=111
111 % 10 = 1
So 123716-70-1 is a valid CAS Registry Number.

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123716-70-1Relevant academic research and scientific papers

Reinvestigation of the Reaction of 3-Hydroxy-2-methyl-1-aryl-1-propanones and Related Compounds with Hydrazine and Carboxylic Acids

Cignarella, Giorgio,Barlocco, Daniela,Curzu, Maria Michela,Pinna, Gerard Aime

, p. 320 - 321 (2007/10/02)

The reaction between the title compounds and hydrazine hydrate in an appropriate carboxylic acid gave 1-acyl/aroyl-3-aryl-4-methyl-4,5-dihydropyrazoles 9, instead of 2,5,6-trisubstituted 6,7-dihydro-1,3,4-oxadiazepines as previously reported.Evidence is presented for the attribution of the correct structure and for the reaction mechanisms involved.

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