66498-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66498-20-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,4,9 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 66498-20:
(7*6)+(6*6)+(5*4)+(4*9)+(3*8)+(2*2)+(1*0)=162
162 % 10 = 2
So 66498-20-2 is a valid CAS Registry Number.