Description
Pararosaniline base (C.I. 42500) is an extra pure dye chemical for biological staining and related laboratory applications. It is identified by CAS number 467-62-9 and EG nr. 207-395-0, with empirical formula C₁₉H₁₉N₃O and a molar mass of 305,38 g/mol. Reported physical properties include a density of 1,287 g/cm³, a flash point of 308,3 °C and a boiling point of 516,8 °C, which support safe handling assessments in the laboratory. This extra pure grade from manufacturer Carl ROTH is appropriate where a defined pararosaniline base is required for dyes and pigments used in biological applications. The compact glass unit aids precise weighing and inventory control, while the documented molecular and physical data facilitate solution preparation, documentation and consistent performance in research and routine staining workflows.
This article is part of Dyes, stains & indicators.
Key features
- Appearance: purple to red-brown powder
- Dye content: ≥95 %
- Absorption max. (C2H5OH): 544-547 nm
- Loss on drying: ≤5 %
- CAS number: 467-62-9
- Pack sizes: 5 g, 10 g, 25 g
- EG nr.: 207-395-0
- Purity: extra pure
- Empirical formula: C₁₉H₁₉N₃O
- Molar mass: 305,38 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Warning
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Pararosaniline base (C.I. 42500), extra pure, 5 g, glass
What is this article?
Pararosaniline base (C.I. 42500), extra pure, 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.
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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.
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