73028-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73028-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,0,2 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 73028-20:
(7*7)+(6*3)+(5*0)+(4*2)+(3*8)+(2*2)+(1*0)=103
103 % 10 = 3
So 73028-20-3 is a valid CAS Registry Number.