4166-15-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4166-15-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,6 and 6 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4166-15:
(6*4)+(5*1)+(4*6)+(3*6)+(2*1)+(1*5)=78
78 % 10 = 8
So 4166-15-8 is a valid CAS Registry Number.