98491-90-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98491-90-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,4,9 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 98491-90:
(7*9)+(6*8)+(5*4)+(4*9)+(3*1)+(2*9)+(1*0)=188
188 % 10 = 8
So 98491-90-8 is a valid CAS Registry Number.