520-82-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 520-82-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 520-82:
(5*5)+(4*2)+(3*0)+(2*8)+(1*2)=51
51 % 10 = 1
So 520-82-1 is a valid CAS Registry Number.