17020-12-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17020-12-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,0,2 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 17020-12:
(7*1)+(6*7)+(5*0)+(4*2)+(3*0)+(2*1)+(1*2)=61
61 % 10 = 1
So 17020-12-1 is a valid CAS Registry Number.