98668-78-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98668-78-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,6,6 and 8 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 98668-78:
(7*9)+(6*8)+(5*6)+(4*6)+(3*8)+(2*7)+(1*8)=211
211 % 10 = 1
So 98668-78-1 is a valid CAS Registry Number.