689-69-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 689-69-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,8 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 689-69:
(5*6)+(4*8)+(3*9)+(2*6)+(1*9)=110
110 % 10 = 0
So 689-69-0 is a valid CAS Registry Number.