198009-84-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198009-84-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,0,0 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 198009-84:
(8*1)+(7*9)+(6*8)+(5*0)+(4*0)+(3*9)+(2*8)+(1*4)=166
166 % 10 = 6
So 198009-84-6 is a valid CAS Registry Number.