197153-73-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197153-73-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,1,5 and 3 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 197153-73:
(8*1)+(7*9)+(6*7)+(5*1)+(4*5)+(3*3)+(2*7)+(1*3)=164
164 % 10 = 4
So 197153-73-4 is a valid CAS Registry Number.