55497-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55497-28-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,4,9 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 55497-28:
(7*5)+(6*5)+(5*4)+(4*9)+(3*7)+(2*2)+(1*8)=154
154 % 10 = 4
So 55497-28-4 is a valid CAS Registry Number.