20297-28-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20297-28-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,9 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20297-28:
(7*2)+(6*0)+(5*2)+(4*9)+(3*7)+(2*2)+(1*8)=93
93 % 10 = 3
So 20297-28-3 is a valid CAS Registry Number.
20297-28-3Relevant articles and documents
Reactions of N-nitrosodiphenylamine with Grignard reagents. A convenient synthesis of diaryl- and dialkyl nitroxyls
Cardellini,Greci,Tosi
, p. 201 - 207 (2007/10/02)
N-nitrosodiphenylamine reacts with Grignard reagents forming symmetric dialkyl- or diarylhydroxylamines which are quantitatively converted into the corresponding nitroxyls by lead dioxide oxidation.