73309-45-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73309-45-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,3,0 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 73309-45:
(7*7)+(6*3)+(5*3)+(4*0)+(3*9)+(2*4)+(1*5)=122
122 % 10 = 2
So 73309-45-2 is a valid CAS Registry Number.