1098517-90-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1098517-90-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,8,5,1 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1098517-90:
(9*1)+(8*0)+(7*9)+(6*8)+(5*5)+(4*1)+(3*7)+(2*9)+(1*0)=188
188 % 10 = 8
So 1098517-90-8 is a valid CAS Registry Number.