85308-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 85308-20-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,3,0 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 85308-20:
(7*8)+(6*5)+(5*3)+(4*0)+(3*8)+(2*2)+(1*0)=129
129 % 10 = 9
So 85308-20-9 is a valid CAS Registry Number.