54008-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54008-42-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,0,0 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 54008-42:
(7*5)+(6*4)+(5*0)+(4*0)+(3*8)+(2*4)+(1*2)=93
93 % 10 = 3
So 54008-42-3 is a valid CAS Registry Number.