Cas 67720-43-8,3,5-Pyridinedicarbonitrile, 6-amino-1,2-dihydro-4-(4-methylphenyl)-2-oxo-

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Check Digit Verification of cas no

The CAS Registry Mumber 67720-43-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,7,2 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 67720-43:
(7*6)+(6*7)+(5*7)+(4*2)+(3*0)+(2*4)+(1*3)=138
138 % 10 = 8
So 67720-43-8 is a valid CAS Registry Number.

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67720-43-8Relevant academic research and scientific papers

An efficient and greener approach to the synthesis of 3,5-dicyanopyridin- 2(1H)-one derivatives in aqueous media under microwave irradiation conditions

Jia, Runhong,Tu, Shujiang,Zhang, Yan,Jiang, Bo,Zhang, Junyong,Yao, Changsheng,Shi, Feng

, p. 1177 - 1180 (2007)

(Chemical Equation Presented) A facile and greener synthesis of a series of 3,5-dicyanopyridin-2(1H)-one derivatives was accomplished via the one-pot reaction of aldehyde, malononitrile and sodium hydroxide in aqueous media under microwave irradiation. Th

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