5028-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5028-83-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,2 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5028-83:
(6*5)+(5*0)+(4*2)+(3*8)+(2*8)+(1*3)=81
81 % 10 = 1
So 5028-83-1 is a valid CAS Registry Number.