20017-51-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20017-51-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,1 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20017-51:
(7*2)+(6*0)+(5*0)+(4*1)+(3*7)+(2*5)+(1*1)=50
50 % 10 = 0
So 20017-51-0 is a valid CAS Registry Number.