166411-28-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 166411-28-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,4,1 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 166411-28:
(8*1)+(7*6)+(6*6)+(5*4)+(4*1)+(3*1)+(2*2)+(1*8)=125
125 % 10 = 5
So 166411-28-5 is a valid CAS Registry Number.