98306-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98306-71-9 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 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 98306-71:
(7*9)+(6*8)+(5*3)+(4*0)+(3*6)+(2*7)+(1*1)=159
159 % 10 = 9
So 98306-71-9 is a valid CAS Registry Number.