538-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 538-80-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,3 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 538-80:
(5*5)+(4*3)+(3*8)+(2*8)+(1*0)=77
77 % 10 = 7
So 538-80-7 is a valid CAS Registry Number.