198017-17-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198017-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,0,1 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 198017-17:
(8*1)+(7*9)+(6*8)+(5*0)+(4*1)+(3*7)+(2*1)+(1*7)=153
153 % 10 = 3
So 198017-17-3 is a valid CAS Registry Number.