18544-73-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18544-73-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,5,4 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18544-73:
(7*1)+(6*8)+(5*5)+(4*4)+(3*4)+(2*7)+(1*3)=125
125 % 10 = 5
So 18544-73-5 is a valid CAS Registry Number.