91797-50-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91797-50-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,9 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 91797-50:
(7*9)+(6*1)+(5*7)+(4*9)+(3*7)+(2*5)+(1*0)=171
171 % 10 = 1
So 91797-50-1 is a valid CAS Registry Number.