121311-51-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121311-51-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,3,1 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121311-51:
(8*1)+(7*2)+(6*1)+(5*3)+(4*1)+(3*1)+(2*5)+(1*1)=61
61 % 10 = 1
So 121311-51-1 is a valid CAS Registry Number.
121311-51-1Relevant 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
