2166-96-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2166-96-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,6 and 6 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 2166-96:
(6*2)+(5*1)+(4*6)+(3*6)+(2*9)+(1*6)=83
83 % 10 = 3
So 2166-96-3 is a valid CAS Registry Number.