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Antibiotics, such as penicillin, puromycin, and ampicillin, are molecules that specifically target and kill cells. Antibiotics are classified into four categories: antibacterial, antiviral, antifungal, and antineoplastic. They work by a number of different actions including inhibition or regulation of cell wall synthesis, nucleic acid metabolism, and protein synthesis. Sigma-Aldrich offers a wide variety of antibiotics and antibiotic solutions for all your research needs.

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.