Description
Methyl red supplement is a microbiology reagent with CAS number 493-52-7 and empirical formula C₁₅H₁₅N₃O₂. It has a molar mass of 269,31 g/mol, a density of approximately 0,79 g/cm³, a flash point of 22 °C and a boiling point of 78 °C. Supplied in a 100 ml glass bottle, this preparation is intended for microbiology as a nutrient media additive where methyl red is required as an indicator component. The defined chemical identity supports classical differentiation and media work that relies on a clear pH-dependent colour response under controlled laboratory conditions. This methyl red supplement from manufacturer Carl ROTH fits routine media preparation and quality-controlled culture workflows in research and diagnostic settings. The glass pack format is practical for bench-scale addition to culture media and related formulations. Physical data provided for density, flash point and boiling point help users plan handling within standard laboratory practice. Laboratories that prepare indicator-containing media benefit from a consistent pack size and a clearly specified composition for reproducible day-to-day use.
This article is part of Dehydrated culture media (agar & broth bases), in Culture media & microbiology. See also Petri dishes.
Key features
- Appearance: clear, red liquid
- Concentration: 2 %
- CAS number: 493-52-7
- Pack size: 100 ml glass
- Empirical formula: C₁₅H₁₅N₃O₂
- Molar mass: 269,31 g/mol
- Density: ~0,79 g/cm³
- Storage temperature: +15 to +25 °C
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Danger
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Methyl red supplement, for microbiology, 100 ml, glass
What is this article?
Methyl red supplement, for microbiology, 100 ml, glass 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 Life Science & Microbiology.
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 Life Science & Microbiology.
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.