26197-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26197-71-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,1,9 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 26197-71:
(7*2)+(6*6)+(5*1)+(4*9)+(3*7)+(2*7)+(1*1)=127
127 % 10 = 7
So 26197-71-7 is a valid CAS Registry Number.