Description
Fast Green FCF is a synthetic triarylmethane dye intended for microscopy, characterised by CAS number 2353-45-9, empirical formula C₃₇H₃₄N₂Na₂O₁₀S₃ and molar mass 808,84 g/mol. It is widely applied as a counterstain and protein stain in histological and botanical preparations, where intense green colouration helps delineate cytoplasmic and connective-tissue structures alongside nuclear dyes. Physical data include a flash point of 178 °C and a boiling point above 260 °C. The product is Registered under EG number 219-091-5, Fast Green FCF from manufacturer Carl ROTH supports standardised microscopy workflows that require a reliable green acid dye. The defined composition and laboratory pack size facilitate consistent staining performance across serial sections and comparative studies.
This article belongs on Microscopy stains & staining solutions, in Dyes, stains & indicators.
Key features
- Dye content: ≥85 %
- In H2O insoluble matter: ≤0,2 %
- Solubility (0,1 % in H2O): dark blue to dark green solution
- CAS number: 2353-45-9
- Pack sizes: 25 g, 5 g
- EG nr.: 219-091-5
- Empirical formula: C₃₇H₃₄N₂Na₂O₁₀S₃
- Molar mass: 808,84 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
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Precautionary Statements (P-Phrases)
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Questions about Fast Green FCF, for microscopy, 5 g, glass
What is this article?
Fast Green FCF, 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.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.