66168-28-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66168-28-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,1,6 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 66168-28:
(7*6)+(6*6)+(5*1)+(4*6)+(3*8)+(2*2)+(1*8)=143
143 % 10 = 3
So 66168-28-3 is a valid CAS Registry Number.