1161-16-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1161-16-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,6 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1161-16:
(6*1)+(5*1)+(4*6)+(3*1)+(2*1)+(1*6)=46
46 % 10 = 6
So 1161-16-6 is a valid CAS Registry Number.