54789-84-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54789-84-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,7,8 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 54789-84:
(7*5)+(6*4)+(5*7)+(4*8)+(3*9)+(2*8)+(1*4)=173
173 % 10 = 3
So 54789-84-3 is a valid CAS Registry Number.