Attention:

Certain features of Sigma-Aldrich.com will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

Spectrum of Activity

Use the Antibiotic Selector to quickly search or browse for the best antibiotic based on your application. Also take advantage of this tool to find antibiotic usage information such as solubility, solution stability, and working concentration.