54007-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54007-89-5 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 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 54007-89:
(7*5)+(6*4)+(5*0)+(4*0)+(3*7)+(2*8)+(1*9)=105
105 % 10 = 5
So 54007-89-5 is a valid CAS Registry Number.