879996-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 879996-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,9,9,9 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 879996-77:
(8*8)+(7*7)+(6*9)+(5*9)+(4*9)+(3*6)+(2*7)+(1*7)=287
287 % 10 = 7
So 879996-77-7 is a valid CAS Registry Number.
879996-77-7Relevant articles and documents
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
