Description
Methyl violet 2B (C.I. 42535) is a microscopy-grade dye with CAS number 8004-87-3 and empirical formula C₂₄H₂₈N₃Cl. The compound has a molar mass of 393,96 g/mol and is supplied for microscopy applications where a defined violet stain is required. This listing is, convenient for preparing staining solutions, teaching preparations and routine microscopic work in analytical and biological laboratories. Colour Index designation 42535 supports clear product identification alongside the CAS entry. The material is associated with UN number 3077 as stated by the manufacturer, which is relevant for transport classification and laboratory logistics. Methyl violet 2B from manufacturer Carl ROTH is positioned for users who need a compact quantity of a classical microscopy dye without larger bulk packaging. The glass container suits bench storage and controlled dispensing when making working stains. Use is aligned with microscopy and related indicator-type dye applications described for this grade, based solely on the stated product data.
This article is part of Reference substances & reagents (other), in Analytical standards & reference materials.
Key features
- Appearance: green cryst. powder
- Loss on drying: ≤10,0 %
- CAS number: 8004-87-3
- Pack sizes: 5 g, 25 g, 100 g
- Empirical formula: C₂₄H₂₈N₃Cl
- Molar mass: 393,96 g/mol
- Grade: for microscopy
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
DangerHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Methyl violet 2B (C.I. 42535), for microscopy, 5 g, glass
What is this article?
Methyl violet 2B (C.I. 42535), for microscopy, 5 g, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Reference substances & reagents (other), inside Analytical standards & reference materials, in Lab chemicals.
A reference substance has a stated identity and a stated content, used to check a method or to standardise a titration. It is a more tightly specified article than a reagent grade bottle of the same name. The lot's certificate is part of the product.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
Which category should I open next?
The category is Analytical standards & reference materials. The sub-category is Reference substances & reagents (other). The catalogue is Lab chemicals.
Shelves beside this one are ICP, AAS & ion standards, Chromatography standards (GC, HPLC, pesticides), Volumetric standard solutions (titration), Reagents for analysis (Ph. Eur., ASTM, DIN), Spectroscopy & physical property standards and Indicators & indicator solutions.
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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