Description
Supplément de rouge de méthyle, pour la microbiologie, Masse molaire (M) 269,31 g/mol, Densité (D) ~0,79 g/cm³, Point d'éclair (flp) 22 °C, Point d'ébullition (bp) 78 °C, Temp. de stockage +15 à +25 °C, N° CAS 493-52-7, N° UN 1170, Formule brute C15H15N3O2
La formation d'acide lors de la fermentation mixte est détectée par le test au rouge de méthyle (test MR).
La fermentation mixte produit beaucoup d'acide (pH<4,4), ce qui entraîne une couleur rouge vif (positive) après ajout de la solution de rouge de méthyle. Si aucune fermentation mixte n'a lieu, peu d'acide est présent et une couleur jaune/orange (négative) en résulte.
Le test au rouge de méthyle fait partie de la série de Bunte pour la différenciation des bactéries, en particulier du groupe des Entérobactériaceae.
| Utilisation | Test au rouge de méthyle, test MRVP |
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Questions about Milieu gélosé au rouge de méthyle, pour microbiologie, 100 ml, verre
What is this article?
Milieu gélosé au rouge de méthyle, pour microbiologie, 100 ml, verre is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Dehydrated culture media (agar & broth bases), inside Culture media & microbiology, in Milieux microbiologiques.
A dehydrated medium is a powder the laboratory dissolves, sterilises and pours. The formulation name, the supplements it still needs, and the grams per litre are the specification. Two powders with similar names, one selective and one not, grow different organisms.
A culture medium is the food and the solid or liquid home of a microorganism. Dehydrated media are powders the laboratory dissolves and sterilises. Ready-to-use plates and tubes are already that. A Petri dish is the plate. Selective media let one kind of organism grow and hold another back. The formulation and the supplements, not the colour of the agar, are the specification. Reference strains are at ATCC. Methods are on PubMed. Biosafety practice is the WHO laboratory biosafety topic.
Which category should I open next?
The category is Culture media & microbiology. The sub-category is Dehydrated culture media (agar & broth bases). The catalogue is Milieux microbiologiques.
Shelves beside this one are Petri dishes, Ready-to-use culture media (plates, tubes, bottles), Microbiology (other), Inoculation loops, spreaders & needles and Microbial identification, hygiene monitoring & rapid tests.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.