73161-44-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73161-44-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,1,6 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 73161-44:
(7*7)+(6*3)+(5*1)+(4*6)+(3*1)+(2*4)+(1*4)=111
111 % 10 = 1
So 73161-44-1 is a valid CAS Registry Number.