66166-39-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66166-39-0 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 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 66166-39:
(7*6)+(6*6)+(5*1)+(4*6)+(3*6)+(2*3)+(1*9)=140
140 % 10 = 0
So 66166-39-0 is a valid CAS Registry Number.