164458-73-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 164458-73-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,4,5 and 8 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 164458-73:
(8*1)+(7*6)+(6*4)+(5*4)+(4*5)+(3*8)+(2*7)+(1*3)=155
155 % 10 = 5
So 164458-73-5 is a valid CAS Registry Number.