84505-09-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84505-09-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,5,0 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 84505-09:
(7*8)+(6*4)+(5*5)+(4*0)+(3*5)+(2*0)+(1*9)=129
129 % 10 = 9
So 84505-09-9 is a valid CAS Registry Number.