83757-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83757-31-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,7,5 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 83757-31:
(7*8)+(6*3)+(5*7)+(4*5)+(3*7)+(2*3)+(1*1)=157
157 % 10 = 7
So 83757-31-7 is a valid CAS Registry Number.
83757-31-7Relevant academic research and scientific papers
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
