121717-37-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121717-37-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,1 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 121717-37:
(8*1)+(7*2)+(6*1)+(5*7)+(4*1)+(3*7)+(2*3)+(1*7)=101
101 % 10 = 1
So 121717-37-1 is a valid CAS Registry Number.
121717-37-1Relevant articles and documents
Aminophenyl-X-azolopyridines as Precursors of Heterocyclic Azo Dyes
Savarino, P.,Viscardi, G.,Carpignano, R.,Borda, A.,Barni, E.
, p. 289 - 292 (2007/10/02)
Aminophenyl-X-azolopyridines (X = O, S, NH) are interesting intermediates for the synthesis of disperse azo dyes and, provided the pyridine nitrogen is quaternized, of their cationic counterparts.A set of novel amines and nitro derivatives is described, a
