1421694-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421694-71-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,6,9 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1421694-71:
(9*1)+(8*4)+(7*2)+(6*1)+(5*6)+(4*9)+(3*4)+(2*7)+(1*1)=154
154 % 10 = 4
So 1421694-71-4 is a valid CAS Registry Number.
1421694-71-4Relevant articles and documents
One-pot synthesis of bis(amino)-1,2,4-thiadiazoles via direct S NAr
Beeley, Howard A.,Degorce, Sébastien,Harris, Craig S.,Lecoq, Jonathan,Morgentin, Rémy,Perkins, David
, p. 788 - 791 (2013/03/13)
The synthesis of bis(amino)-1,2,4-thiadiazoles usually relies on a four step sequence. Herein, we communicate to our knowledge the first one-pot synthesis of bis(amino)-1,2,4-thiadiazoles via a double SNAr approach.
