54208-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54208-40-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,2,0 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 54208-40:
(7*5)+(6*4)+(5*2)+(4*0)+(3*8)+(2*4)+(1*0)=101
101 % 10 = 1
So 54208-40-1 is a valid CAS Registry Number.