81975-63-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81975-63-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,7 and 5 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81975-63:
(7*8)+(6*1)+(5*9)+(4*7)+(3*5)+(2*6)+(1*3)=165
165 % 10 = 5
So 81975-63-5 is a valid CAS Registry Number.
81975-63-5Relevant academic research and scientific papers
Synthesis of Heterocyclic Compounds by C-C-bond Closure. V. A novel Pyridone Synthesis
Schmitz, Ernst,Schramm, Siegfried
, p. 82 - 84 (2007/10/02)
Under the action of alkali two moles of N-primary alkyl cyanoacetamides 5 condense to form 1-alkyl-5-alkylaminocarbonyl-4,6-diamino-pyridone-2 (6).
