Description
Azure A (C.I. 52005) is a thiazine dye for microscopy with CAS number 531-53-3 and empirical formula C₁₄H₁₄ClN₃S. Its molar mass is 291,80 g/mol and the EG number is 208-510-7. The material belongs to the established family of azure dyes employed in histological and cytological preparations. Available from manufacturer Carl ROTH, it is intended for laboratory microscopy applications in research and routine staining protocols. The crystalline dye is suited to preparation of staining solutions according to standard laboratory practice. Clear identification via Colour Index designation C.I. 52005 and the stated CAS and EG identifiers aids consistent ordering and documentation.
This article is part of Microscopy stains & staining solutions, in Dyes, stains & indicators.
Key features
- Appearance: dark green to green black cryst. powder
- Appearance of solution (0,1 % in H2O): clear, blue
- Loss on drying (1 h, 110 °C): ≤8,0 %
- CAS number: 531-53-3
- Pack sizes: 5 g, 25 g, 100 g
- EG nr.: 208-510-7
- Empirical formula: C₁₄H₁₄ClN₃S
- Molar mass: 291,80 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Azure A (C.I. 52005), for microscopy, 5 g, glass
What is this article?
Azure A (C.I. 52005), for microscopy, 5 g, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Microscopy stains & staining solutions, inside Dyes, stains & indicators, in Lab chemicals.
A microscopy stain binds a structure so it can be seen: haematoxylin on nuclei, eosin on cytoplasm, Gram reagents on a bacterial wall. A ready solution and a dry dye to be dissolved are different articles. The method names the stain. A substitute dye is a different method.
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 Microscopy stains & staining solutions. The catalogue is Lab chemicals.
Shelves beside this one are Fluorescent dyes & labels and Dyes & pigments.
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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.