16143-16-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16143-16-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,1,4 and 3 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 16143-16:
(7*1)+(6*6)+(5*1)+(4*4)+(3*3)+(2*1)+(1*6)=81
81 % 10 = 1
So 16143-16-1 is a valid CAS Registry Number.