55240-20-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55240-20-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,2,4 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 55240-20:
(7*5)+(6*5)+(5*2)+(4*4)+(3*0)+(2*2)+(1*0)=95
95 % 10 = 5
So 55240-20-5 is a valid CAS Registry Number.