550-92-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 550-92-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,5 and 0 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 550-92:
(5*5)+(4*5)+(3*0)+(2*9)+(1*2)=65
65 % 10 = 5
So 550-92-5 is a valid CAS Registry Number.