Cas 136411-63-7,6-(2,4-difluorophenyl)pyrido<4,3-c>pyridazin-5(6H)-one

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Check Digit Verification of cas no

The CAS Registry Mumber 136411-63-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,4,1 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 136411-63:
(8*1)+(7*3)+(6*6)+(5*4)+(4*1)+(3*1)+(2*6)+(1*3)=107
107 % 10 = 7
So 136411-63-7 is a valid CAS Registry Number.

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136411-63-7Relevant academic research and scientific papers

A Novel Approach to the Pyridopyridazine Ring. Synthesis of Pyridopyridazin-5(6H)-one from 3,4-Disubstituted Pyridazines

Vors, Jean-Pierre

, p. 1043 - 1046 (2007/10/02)

The synthesis of new pyridopyridazin-5(6H)-one from ethyl 3-methyl-4-pyridazinecarboxylate using an enamination/ring closure sequence is described.The starting material is easily available from a hetero Diels-Alder reaction between a 1,2-diaza-1,3-

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