97818-05-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97818-05-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,8,1 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 97818-05:
(7*9)+(6*7)+(5*8)+(4*1)+(3*8)+(2*0)+(1*5)=178
178 % 10 = 8
So 97818-05-8 is a valid CAS Registry Number.