549479-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 549479-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,9,4,7 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 549479-31:
(8*5)+(7*4)+(6*9)+(5*4)+(4*7)+(3*9)+(2*3)+(1*1)=204
204 % 10 = 4
So 549479-31-4 is a valid CAS Registry Number.