16660-80-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16660-80-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,6 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 16660-80:
(7*1)+(6*6)+(5*6)+(4*6)+(3*0)+(2*8)+(1*0)=113
113 % 10 = 3
So 16660-80-3 is a valid CAS Registry Number.