66800-26-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66800-26-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,8,0 and 0 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 66800-26:
(7*6)+(6*6)+(5*8)+(4*0)+(3*0)+(2*2)+(1*6)=128
128 % 10 = 8
So 66800-26-8 is a valid CAS Registry Number.