Beschreibung
Victoria blue B (C.I. 44045) is an extra pure dye supplied for laboratory and biological staining applications, identified by CAS number 2580-56-5 and EG nr. 219-943-6. Its empirical formula is C₃₃H₃₂ClN₃ with a molar mass of 506,1 g/mol, establishing a clear chemical identity for documentation and method transfer. The extra pure grade supports work where a defined colourant is needed for microscopy, histological contrast, or other biological dye protocols. The product is Glass packaging facilitates orderly storage and accurate weighing in the laboratory. Victoria blue B (C.I. 44045) from manufacturer Carl ROTH brings together Colour Index designation, CAS/EG identifiers, and molar-mass data in one laboratory-ready unit. Researchers and technicians can incorporate the dye into established biological staining workflows while relying on the stated compositional parameters.
This article is part of Dyes & pigments, in Dyes, stains & indicators.
Key features
- Appearance: red brown powder
- Absorption max. (50 % C2H5OH): 612-617 nm
- Loss on drying: ≤10 %
- CAS number: 2580-56-5
- Pack sizes: 10 g, 25 g, 100 g
- EG nr.: 219-943-6
- Empirical formula: C₃₃H₃₂ClN₃
- Molar mass: 506,1 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Gevaar
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Victoria blue B (C.I. 44045), extra pure, 10 g, glass
What is this article?
Victoria blue B (C.I. 44045), extra pure, 10 g, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Dyes & pigments, inside Dyes, stains & indicators, in Labor- und Industriechemikalien.
A dye dissolves. A pigment is a particle dispersed in a medium. On this shelf they are the colouring substances used as reagents or as markers, specified by Colour Index name or by structure where it is known. The same common name can hide two constitutions.
A dye or a stain binds, or changes colour, so that something invisible becomes visible. An indicator changes at a pH or a redox point. A fluorescent dye absorbs one wavelength and emits another, which is how a microscope or a plate reader picks it out. The excitation and emission, or the transition interval, are the specification. The colour name on the label is not. Structures are on PubChem under IUPAC names. Methods are in the PubMed literature.
Which category should I open next?
The category is Dyes, stains & indicators. The sub-category is Dyes & pigments. The catalogue is Labor- und Industriechemikalien.
Shelves beside this one are Fluorescent dyes & labels and Microscopy stains & staining 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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.