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| Names | |
|---|---|
| IUPAC name -1-cyclohexa-2,5-dienylidene]azanium chloride | |
| Other names
Pararosaniline hydrochloride Pararosaniline chloride C.I. 42500 C.I. Basic Red 9, monohydrochloride Para magenta | |
| Identifiers | |
| CAS Number | |
| 3D model (JSmol) | |
| ECHA InfoCard | 100.106.992 
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| KEGG | |
| PubChem CID | |
| CompTox Dashboard (EPA) | |
SMILES
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| Properties | |
| Chemical formula | C19H18ClN3 |
| Molar mass | 323.82 g/mol |
| Appearance | Green crystalline solid |
| Melting point | 268-270°C (541-543 K) dec. |
| Solubility in water | Slightly soluble |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa).
 Y verify (what is ?)
Infobox references
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Pararosaniline, Basic Red 9, or C.I. 42500 is a magenta dye having chemical formula Template:Carbon19Template:Hydrogen18Template:Nitrogen3Template:Chlorine. It is one of the four components of basic fuchsine. (The others are rosaniline, new fuchsine and magenta II.) Pararosaniline, which is sold as a single dye, may make the best Schiff's reagent. It is the only basic fuchsine component suitable for making the aldehyde-fuchsine stain for pancreatic islet beta cells
References
- Horobin RW, Kiernan JA (2002) Conn's Biological Stains, 10th ed. Oxford: BIOS.
- Mowry RW, Emmel VM (1978) Aldehyde fuchsin staining, direct or after oxidation: problems and remedies, with special reference to pancreatic B cells, pituitaries and elastic fibers. Stain Technology 53: 141-154.
Further reading
- Colour Index 3rd Edition Volume 4 (PDF), Bradford: Society of Dyers and Colourists, 1971, p. 4388.
- Gessner, T.; Mayer, U. (2002), "Triarylmethane and Diarylmethane Dyes", Ullmann's Encyclopedia of Industrial Chemistry 6th Edition, Weinheim: Wiley-VCH, doi:10.1002/14356007.a27_179.
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