Description
Azure II is a microscopy dye with CAS number 37247-10-2 and empirical formula C₁₆H₁₈ClN₃S · C₁₅H₁₆ClN₃S. Its molar mass is 625,68 g/mol, supporting precise preparation of staining solutions for biological and histological work. Azure II belongs to the thiazine dye family and is widely used in classical staining protocols for cellular and tissue structures. The material from manufacturer Carl ROTH is offered for dyes and pigments used in biological applications, enabling reliable bench-scale formulation of working stains. The compact glass unit suits method development, teaching laboratories, and routine microscopy workflows that need only small quantities. Handle and dissolve according to established staining procedures and laboratory safety practice for dye chemicals.
This article is part of Microscopy stains & staining solutions, in Dyes, stains & indicators.
Key features
- Appearance: greenish brown to greenish black powder
- Appearance of solution (0,1 % in H2O): clear, dark blue
- Loss on drying (110 °C): ≤10 %
- CAS number: 37247-10-2
- Pack sizes: 1 g, 10 g, 50 g
- Empirical formula: C₁₆H₁₈ClN₃S · C₁₅H₁₆ClN₃S
- Molar mass: 625,68 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
WarningHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Azure II, for microscopy, 1 g, glass
What is this article?
Azure II, for microscopy, 1 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.
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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. 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.
