66548-01-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66548-01-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,5,4 and 8 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 66548-01:
(7*6)+(6*6)+(5*5)+(4*4)+(3*8)+(2*0)+(1*1)=144
144 % 10 = 4
So 66548-01-4 is a valid CAS Registry Number.