55728-52-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55728-52-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,7,2 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 55728-52:
(7*5)+(6*5)+(5*7)+(4*2)+(3*8)+(2*5)+(1*2)=144
144 % 10 = 4
So 55728-52-4 is a valid CAS Registry Number.