121311-55-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121311-55-5 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 5 respectively.
Calculate Digit Verification of CAS Registry Number 121311-55:
(8*1)+(7*2)+(6*1)+(5*3)+(4*1)+(3*1)+(2*5)+(1*5)=65
65 % 10 = 5
So 121311-55-5 is a valid CAS Registry Number.
121311-55-5Relevant articles and documents
Oxazole Ring Cleavage in the Course of the Synthesis of Heterocyclic Azo Dyes
Savarino, P,Viscardi, G,Carpignano, R,Barni, E
, p. 77 - 80 (2007/10/02)
The formation of azo dyes by coupling the diazonium salts of aminophenyloxazolopyridines with N,N-diethylaniline was shown to be a suitable probe to check the stability of the oxazole ring in the course of their preparation.Depending on experimental condi
