209473-49-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209473-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,4,7 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 209473-49:
(8*2)+(7*0)+(6*9)+(5*4)+(4*7)+(3*3)+(2*4)+(1*9)=144
144 % 10 = 4
So 209473-49-4 is a valid CAS Registry Number.