549505-84-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 549505-84-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,9,5,0 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 549505-84:
(8*5)+(7*4)+(6*9)+(5*5)+(4*0)+(3*5)+(2*8)+(1*4)=182
182 % 10 = 2
So 549505-84-2 is a valid CAS Registry Number.