73453-71-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73453-71-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,4,5 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73453-71:
(7*7)+(6*3)+(5*4)+(4*5)+(3*3)+(2*7)+(1*1)=131
131 % 10 = 1
So 73453-71-1 is a valid CAS Registry Number.