508-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 508-55-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,0 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 508-55:
(5*5)+(4*0)+(3*8)+(2*5)+(1*5)=64
64 % 10 = 4
So 508-55-4 is a valid CAS Registry Number.