Description
Chromotrope® 2B (C.I. 16575) is a microscopy dye formulated for biological staining work. It is characterised by CAS number 548-80-1, EG number 208-959-9, empirical formula C₁₆H₉N₃Na₂O₁₀S₂ and a molar mass of 513,37 g/mol. The Colour Index 16575 identity and disodium azo structure support consistent dye chemistry in laboratory protocols. Available from manufacturer Carl ROTH, this product sits within dyes and pigments intended for biological applications. The solid form is suitable for controlled dissolution, stock preparation and routine bench staining where a defined Chromotrope® 2B grade is required. Research, teaching and analytical microscopy groups can use to maintain method continuity without excess bulk inventory.
This article belongs in Dyes, stains & indicators.
Key features
- Appearance: dark green to brown powder
- Absorption max. (in H2O): 514 nm
- CAS number: 548-80-1
- Pack sizes: 5 g, 25 g, 100 g
- EG nr.: 208-959-9
- Empirical formula: C₁₆H₉N₃Na₂O₁₀S₂
- Molar mass: 513,37 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Warning
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
Recently viewed
You may also like
Questions about Chromotrope® 2B (C.I. 16575), for microscopy, 5 g, glass
What is this article?
Chromotrope® 2B (C.I. 16575), for microscopy, 5 g, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Dyes, stains & indicators, in Lab chemicals.
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 catalogue is Lab chemicals.
Shelves beside this one are Fluorescent dyes & labels, Microscopy stains & staining solutions 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. 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.