20666-88-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20666-88-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,6 and 6 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20666-88:
(7*2)+(6*0)+(5*6)+(4*6)+(3*6)+(2*8)+(1*8)=110
110 % 10 = 0
So 20666-88-0 is a valid CAS Registry Number.