53987-33-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53987-33-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,9,8 and 7 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 53987-33:
(7*5)+(6*3)+(5*9)+(4*8)+(3*7)+(2*3)+(1*3)=160
160 % 10 = 0
So 53987-33-0 is a valid CAS Registry Number.
53987-33-0Relevant articles and documents
New route for preparation of nitrosubstituted 1,2-phenylenediamines
Bella, Maros,Milata, Viktor
, p. 425 - 427 (2008/09/19)
(Chemical Equation Presented) 4-Nitrobenzoselenadiazole was methylated with dimethylsulphate to give corresponding 1-N-methyl-4-nitrobenzoselenadiazolium methylsulphate which after alkaline ring-opening afforded 1-N-methyl-3-nitro-1, 2-phenylenediamine in