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[[Image:New fuchsine.png|thumb|200px|New fuchsine]] |
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| ImageFile = NewFuchsineStructure.png |
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| OtherNames = new fuchsin, Magenta III, Basic Violet 2, C.I. 42520 |
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| CASNo = 3248-91-7 |
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| Formula = C<sub>22</sub>H<sub>24</sub>{{nitrogen}}<sub>3</sub>{{chlorine}} |
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| Appearance = dark red solid |
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'''New fuchsine''', (from [[German (language)|German]] "fuchs", ''fox'') is an organic compound]] with the [[chemical formula|formula]] [(CH3N(H)CH3C<sub>C</sub>H<sub>3</sub>)<sub>3</sub>C]Cl. It is a [[magenta (color)|magenta]]-colored solid that is used as a [[dye]]. It is one of the four components of basic [[fuchsine]], and one of the two that are available as single dyes.<ref>Horobin RW, Kiernan JA (2002) Conn's Biological Stains, 10th ed. Oxford: BIOS.</ref> The other is [[pararosaniline]]. |
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It is prepared by condensation of N-methyl[[toluidine]] with xylidene in the presence of [[hydrochloric acid]]. |
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==Use as dye and stain== |
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It is used to dye polyacrylonitrile, paper, and leather.<ref>Thomas Gessner and Udo Mayer "Triarylmethane and Diarylmethane Dyes" in [[Ullmann's Encyclopedia of Industrial Chemistry]] 2002, [[Wiley-VCH]], Weinheim.{{DOI|10.1002/14356007.a27_179}}</ref> |
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⚫ | New fuchsine can be used for [[staining (biology)|staining]] acid fast organism, e.g. by [[Ziehl-Neelsen stain]], and for making Schiff's reagent. As a primary amine, the dye can be diazotized in the laboratory, and the resulting diazonium salt used as a trapping agent in enzyme histochemistry.<ref>Lojda Z, Gossrau R, Schiebler TH (1979) Enzyme Histochemistry. A Laboratory Manual. Berlin: Springer-Verlag.</ref> |
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== See also == |
== See also == |
Revision as of 13:14, 4 July 2013
Names | |
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Other names
new fuchsin, Magenta III, Basic Violet 2, C.I. 42520
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Identifiers | |
ECHA InfoCard | 100.019.847 |
CompTox Dashboard (EPA)
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Properties | |
C22H24Template:Nitrogen3Template:Chlorine | |
Appearance | dark red solid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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New fuchsine, (from German "fuchs", fox) is an organic compound]] with the formula [(CH3N(H)CH3CCH3)3C]Cl. It is a magenta-colored solid that is used as a dye. It is one of the four components of basic fuchsine, and one of the two that are available as single dyes.[1] The other is pararosaniline.
It is prepared by condensation of N-methyltoluidine with xylidene in the presence of hydrochloric acid.
Use as dye and stain
It is used to dye polyacrylonitrile, paper, and leather.[2]
New fuchsine can be used for staining acid fast organism, e.g. by Ziehl-Neelsen stain, and for making Schiff's reagent. As a primary amine, the dye can be diazotized in the laboratory, and the resulting diazonium salt used as a trapping agent in enzyme histochemistry.[3]
See also
External links
References
- ^ Horobin RW, Kiernan JA (2002) Conn's Biological Stains, 10th ed. Oxford: BIOS.
- ^ Thomas Gessner and Udo Mayer "Triarylmethane and Diarylmethane Dyes" in Ullmann's Encyclopedia of Industrial Chemistry 2002, Wiley-VCH, Weinheim.doi:10.1002/14356007.a27_179
- ^ Lojda Z, Gossrau R, Schiebler TH (1979) Enzyme Histochemistry. A Laboratory Manual. Berlin: Springer-Verlag.