54291-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54291-71-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,2,9 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 54291-71:
(7*5)+(6*4)+(5*2)+(4*9)+(3*1)+(2*7)+(1*1)=123
123 % 10 = 3
So 54291-71-3 is a valid CAS Registry Number.