137959-71-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137959-71-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,5 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 137959-71:
(8*1)+(7*3)+(6*7)+(5*9)+(4*5)+(3*9)+(2*7)+(1*1)=178
178 % 10 = 8
So 137959-71-8 is a valid CAS Registry Number.
137959-71-8Relevant articles and documents
Application of the Gould-Jacobs reaction to 4-amino-2,1,3- benzoselenadiazole
Bella, Maro,Schultz, Marcel,Milata, Viktor,Koariková, Katarína,Breza, Martin
, p. 8169 - 8174 (2010)
An effective method for the synthesis of 4-amino-2,1,3-benzoselenadiazole (4) has been described. Reduction of readily available 4-nitrobenzothiadiazole 6 with SnCl2·2H2O afforded 1,2,3-triaminobenzene dihydrochloride 2. The latter u
