540803-64-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 540803-64-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,0,8,0 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 540803-64:
(8*5)+(7*4)+(6*0)+(5*8)+(4*0)+(3*3)+(2*6)+(1*4)=133
133 % 10 = 3
So 540803-64-3 is a valid CAS Registry Number.