98305-79-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98305-79-4 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, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 98305-79:
(7*9)+(6*8)+(5*3)+(4*0)+(3*5)+(2*7)+(1*9)=164
164 % 10 = 4
So 98305-79-4 is a valid CAS Registry Number.