5564-84-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5564-84-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,6 and 4 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 5564-84:
(6*5)+(5*5)+(4*6)+(3*4)+(2*8)+(1*4)=111
111 % 10 = 1
So 5564-84-1 is a valid CAS Registry Number.