534-80-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 534-80-5 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 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 534-80:
(5*5)+(4*3)+(3*4)+(2*8)+(1*0)=65
65 % 10 = 5
So 534-80-5 is a valid CAS Registry Number.