Cas 56563-34-9,7H-Pyrazolo[3,4-d]pyridazin-7-one, 1,6-dihydro-4-methyl-1,6-diphenyl-

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Check Digit Verification of cas no

The CAS Registry Mumber 56563-34-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,5,6 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 56563-34:
(7*5)+(6*6)+(5*5)+(4*6)+(3*3)+(2*3)+(1*4)=139
139 % 10 = 9
So 56563-34-9 is a valid CAS Registry Number.

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56563-34-9Relevant academic research and scientific papers

Reaction of Ethyl 3-Ethoxymethylene-2,4-dioxovalerate with Monosubstituted Hydrazines

Kurihara, Takushi,Uno, Toshiko,Sakamoto, Yasuhiko

, p. 231 - 233 (2007/10/02)

Reactions of ethyl 3-ethoxymethylene-2,4-dioxovalerate (1) with phenyl- and methylhydrazines are described.While the reaction of 1 with phenylhydrazine gave a mixture of ethyl 4-acetyl-1-phenylpyrazole-5-carboxylate (4) and ethyl 5-methyl-1-phenylpyrazole

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