97317-61-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97317-61-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,3,1 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 97317-61:
(7*9)+(6*7)+(5*3)+(4*1)+(3*7)+(2*6)+(1*1)=158
158 % 10 = 8
So 97317-61-8 is a valid CAS Registry Number.