106566-66-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 106566-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,6,5,6 and 6 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 106566-66:
(8*1)+(7*0)+(6*6)+(5*5)+(4*6)+(3*6)+(2*6)+(1*6)=129
129 % 10 = 9
So 106566-66-9 is a valid CAS Registry Number.