69808-16-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69808-16-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,8,0 and 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 69808-16:
(7*6)+(6*9)+(5*8)+(4*0)+(3*8)+(2*1)+(1*6)=168
168 % 10 = 8
So 69808-16-8 is a valid CAS Registry Number.