198704-41-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198704-41-5 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 4 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 198704-41:
(8*1)+(7*9)+(6*8)+(5*7)+(4*0)+(3*4)+(2*4)+(1*1)=175
175 % 10 = 5
So 198704-41-5 is a valid CAS Registry Number.