20081-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20081-68-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,8 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20081-68:
(7*2)+(6*0)+(5*0)+(4*8)+(3*1)+(2*6)+(1*8)=69
69 % 10 = 9
So 20081-68-9 is a valid CAS Registry Number.