Bile Salts Number 3, 500g is a high-purity reagent used for preparing selective microbiological media for isolating enteric bacteria. Bile salts are crucial for inhibiting the growth of non-enteric organisms while promoting the growth of enteric pathogens such as Salmonella, Shigella, and Escherichia coli. This 500g quantity is ideal for laboratories that perform frequent microbiological testing or work with large volumes of samples. The reagent is commonly used in food safety analysis, environmental monitoring, and clinical diagnostics, where the ability to selectively isolate enteric bacteria is essential for accurate pathogen detection.