500-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 500-81-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,0 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 500-81:
(5*5)+(4*0)+(3*0)+(2*8)+(1*1)=42
42 % 10 = 2
So 500-81-2 is a valid CAS Registry Number.