157763-84-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157763-84-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,7,6 and 3 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 157763-84:
(8*1)+(7*5)+(6*7)+(5*7)+(4*6)+(3*3)+(2*8)+(1*4)=173
173 % 10 = 3
So 157763-84-3 is a valid CAS Registry Number.
157763-84-3Relevant articles and documents
Synthesis of 1-methylbenzimidazoles from carbonitriles
Sluiter, Jonas,Christoffers, Jens
experimental part, p. 63 - 66 (2009/05/27)
The NaH-mediated N-methylbenzimidazole formation starting from carbonitriles and N-methyl-1,2-phenylenediamine is reported to be a procedure compatible with acid-labile acetal protective groups within the starting materials. Products were further converte
