84457-84-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84457-84-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,4,5 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 84457-84:
(7*8)+(6*4)+(5*4)+(4*5)+(3*7)+(2*8)+(1*4)=161
161 % 10 = 1
So 84457-84-1 is a valid CAS Registry Number.