108139-79-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108139-79-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,1,3 and 9 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 108139-79:
(8*1)+(7*0)+(6*8)+(5*1)+(4*3)+(3*9)+(2*7)+(1*9)=123
123 % 10 = 3
So 108139-79-3 is a valid CAS Registry Number.
108139-79-3Relevant articles and documents
Synthesis of Dimethyl and Diethyl 2-Aryl-4,6-dimethyl-1,2-dihydropyridine-3,5-dicarboxylates - Isomers of Hantzsch-type 1,4-Dihydropyridines.
O'Callaghan, Conor N.
, p. 2901 - 2915 (2007/10/02)
Dimethyl and diethyl 2-aryl-4,6-dimethyl-1,2-dihydropyridine-3,5-dicarboxylates are produced from the reaction of aldehydes with ketoesters, when a large excess of ammonia is added to the components in acetic acid solution.
