668988-08-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 668988-08-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,8,9,8 and 8 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 668988-08:
(8*6)+(7*6)+(6*8)+(5*9)+(4*8)+(3*8)+(2*0)+(1*8)=247
247 % 10 = 7
So 668988-08-7 is a valid CAS Registry Number.