97168-61-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97168-61-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,1,6 and 8 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 97168-61:
(7*9)+(6*7)+(5*1)+(4*6)+(3*8)+(2*6)+(1*1)=171
171 % 10 = 1
So 97168-61-1 is a valid CAS Registry Number.