696646-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 696646-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,6,6,4 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 696646-74:
(8*6)+(7*9)+(6*6)+(5*6)+(4*4)+(3*6)+(2*7)+(1*4)=229
229 % 10 = 9
So 696646-74-9 is a valid CAS Registry Number.
696646-74-9Relevant academic research and scientific papers
Synthesis of 3-substituted arylpyrazole-4-carboxylic acids
Lebedev,Lebedeva,Sheludyakov,Kovaleva,Ustinova,Kozhevnikov
, p. 782 - 789 (2007/10/03)
A method was suggested for preparing previously unknown 3-aryl-substituted pyrazole-4-carboxylic acids, involving Vilsmeier formylation of semicarbazones of 26 available mono- and disubstituted acetophenones and 2-acetylthiophene followed by oxidation of
