16169-81-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16169-81-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,1,6 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 16169-81:
(7*1)+(6*6)+(5*1)+(4*6)+(3*9)+(2*8)+(1*1)=116
116 % 10 = 6
So 16169-81-6 is a valid CAS Registry Number.