Forgot your password?
New User?
Remember me
banner banner

You are here:Home » Culture Media » Media-Microbiological » Columbia CNA Agar (Powder)

Columbia CNA Agar (Powder)


  For pricing information, USA customers sign in.
  Outside USA? Please contact your distributor for pricing.


A selective medium for isolation of gram positive bacteria. Most often utilized with blood added. Eliner, et al. added colistin and nalidixic acid to Columbia Agar to suppress the growth of Gram negative bacteria. The addition of 5-10% sheep red blood cells to the base demonstrates hemolytic patterns of the Staphylococci and Streptococci.
Catalog #C7600-04
Light beige, homogeneous, free flowing powder
Yellow, clear, complete after autoclaving
As Reported
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

External Links