R2A-Agar, for microbiology, 500 g, plastic

R2A-Agar is a nutrient medium prepared for microbiology and used in laboratory workflows that require reliable cultivation media for hygienic and analytical work. It belongs to the group of nutrient media applied in microbiological analyses and is particularly associated with the examination of water, supporting routine hygiene monitoring in research and quality-control settings. Supplied as a 500 g pack in plastic, the medium is suited to laboratories that prepare culture plates or related formats from dry nutrient media according to their established protocols. Physical handling is straightforward for standard media preparation benches, with a net weight of 0,404 kg per unit. This R2A-Agar from manufacturer Carl ROTH fits catalogues focused on water microbiology and broader hygiene surveillance programmes where consistent media identity matters for method continuity. Categories of use include applications in hygiene monitoring and microbiological analyses, making it a practical choice when water-related nutrient media are specified. The formulation is presented ready for laboratory reconstitution and use under the conditions defined by the user’s validated methods, without extending beyond the stated microbiological purpose.

This article is part of Dehydrated culture media (agar & broth bases), in Culture media & microbiology. See also Petri dishes.

Key features

• Yeast extract: 0,5 g/l
• Peptone: 0,5 g/l
• Casein hydrolysed: 0,5 g/l
• Glucose: 0,5 g/l
• Starch: 0,5 g/l
• di-Potassium hydrogen phosphate: 0,3 g/l
• Magnesium sulphate (MgSO4): 0,024 g/l
• Sodium pyruvate: 0,3 g/l
• Agar: 15 g/l
• pH value: 7,2 ±0,2
• Pack size: 500 g plastic
• Storage temperature: +15 to +25 °C
• Product type: R2A-Agar for microbiology
• Use area: Hygiene monitoring and microbiological analyses
• Technical Information Sheet:
• Safety Data Sheet: