73424-55-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73424-55-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,4,2 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 73424-55:
(7*7)+(6*3)+(5*4)+(4*2)+(3*4)+(2*5)+(1*5)=122
122 % 10 = 2
So 73424-55-2 is a valid CAS Registry Number.