ProductsDehydrated mediaB12 Assay Medium B12 Assay Medium SKU: QB-45-0211 Unit: Each Brand: NUTRI-BACT B12 Assay Medium Other products from «Dehydrated media» Salted Peptone Broth # QB-45-3543 T1N1 Broth # QB-45-5224 Salted Peptone Broth # QB-1L-3543 Yeast Extract ProBiotics # QB-42-20532