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Antipyroylketen-amino-phenylhydrazino-N,N-acetal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77747-59-2

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77747-59-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77747-59-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,4 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77747-59:
(7*7)+(6*7)+(5*7)+(4*4)+(3*7)+(2*5)+(1*9)=182
182 % 10 = 2
So 77747-59-2 is a valid CAS Registry Number.

77747-59-2Relevant academic research and scientific papers

Antipyrine Derivative with Heterocyclic Substituents, I: New Bipyrazolones

Stachel, Hans-Dietrich,Papenberg, Gerhard

, p. 65 - 71 (2007/10/02)

Starting from antipyroylketene acetal (1) and ethyl antipyroylacetate (8), the isomeric bipyrazolones 10b and 12b as well as their derivatives 10a, 11, 12a and 14 were prepared.The tautomerism of the bipyrazolones is discussed on the basis of their spectr

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