Merck, B1676-500G, Blood agar base no. 2

Blood agar base no. 2, NutriSelect® Plus is used as a dehydrated microbiological medium base for cultivation and differentiation workflows that require blood-supplemented agar. The powder contains proteose peptone, liver extract, yeast extract, sodium chloride, and agar, providing a nutrient-rich foundation that can be supplemented as required by the laboratory method. It is suitable for microbiological culture and specific enzyme-detection workflows and is associated with ISO 11290-1:2017 and ISO 11290-2:2017 applications. The dry format allows laboratories to prepare fresh medium at the required batch size while maintaining control over supplementation and plate preparation. The product is supplied non-sterile as a powder and carries a defined shelf life shown on the package label. This 500 g pack is appropriate for routine microbiology laboratories, quality-control environments, and testing workflows that prepare blood agar media for organism growth and colony characterization.