84520-84-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84520-84-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,5,2 and 0 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 84520-84:
(7*8)+(6*4)+(5*5)+(4*2)+(3*0)+(2*8)+(1*4)=133
133 % 10 = 3
So 84520-84-3 is a valid CAS Registry Number.