54389-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54389-78-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,3,8 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 54389-78:
(7*5)+(6*4)+(5*3)+(4*8)+(3*9)+(2*7)+(1*8)=155
155 % 10 = 5
So 54389-78-5 is a valid CAS Registry Number.