188564-49-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188564-49-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,5,6 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 188564-49:
(8*1)+(7*8)+(6*8)+(5*5)+(4*6)+(3*4)+(2*4)+(1*9)=190
190 % 10 = 0
So 188564-49-0 is a valid CAS Registry Number.
188564-49-0Relevant articles and documents
Benzotriazole-assisted synthesis of N-(α-cyanoalkyl)sulfonamides
Katritzky, Alan R.,Oniciu, Daniela C.,Ghiviriga, Ion
, p. 907 - 922 (1997)
N-(α-benzotriazol-1-ylalkyl)sulfonamides, readily available from benzotriazole, an aldehyde and a sulfonamide, are converted into the corresponding N-(α-cyanoalkyl)sulfonamides in good yields by treatment with potassium cyanide.