198705-04-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198705-04-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,7,0 and 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 198705-04:
(8*1)+(7*9)+(6*8)+(5*7)+(4*0)+(3*5)+(2*0)+(1*4)=173
173 % 10 = 3
So 198705-04-3 is a valid CAS Registry Number.