5523-90-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5523-90-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,2 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 5523-90:
(6*5)+(5*5)+(4*2)+(3*3)+(2*9)+(1*0)=90
90 % 10 = 0
So 5523-90-0 is a valid CAS Registry Number.