98305-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98305-91-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,3,0 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 98305-91:
(7*9)+(6*8)+(5*3)+(4*0)+(3*5)+(2*9)+(1*1)=160
160 % 10 = 0
So 98305-91-0 is a valid CAS Registry Number.