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- Sudan_IV abstract "Sudan IV (C24H20N4O) is a lysochrome (fat-soluble dye) diazo dye used for the staining of lipids, triglycerides and lipoproteins on frozen paraffin sections. It has the appearance of reddish brown crystals with melting point 199 °C and maximum absorption at 520(357) nm.Sudan IV is one of the dyes used for Sudan staining. Similar dyes include Oil Red O, Sudan III, and Sudan Black B. Staining is an important biochemical technique, offering the ability to visually qualify the presence of the fatty compound of interest without isolating it. For staining purposes Sudan IV can be made up in propylene glycol[1]. Alternatively, authors have reported using the dye saturated in isopropyl alcohol, 95% ethanol, or 0.05% by weight in acetone:ethanol:water (50:35:15)[citation needed]. The idea is to use a moderately apolar solvent to solubilize the dye allowing it to partition into the highly apolar fat without the solvent solubilizing the fat to be stained.Sudan I, Sudan III, and Sudan IV have been classified as category 3 carcinogens by the International Agency for Research on Cancer.In its purified form it is called Biebrich scarlet R, which should not be confused with the water-soluble Biebrich scarlet.In industry, it is used to color nonpolar substances like oils, fats, waxes, greases, various hydrocarbon products, and acrylic emulsions. Sudan IV is also used in United Kingdom as a fuel dye to dye lower-taxed heating oil; because of that it is also known as Oil Tax Red. As a food dye, Sudan IV is considered an illegal dye, mainly because of its harmful effect over a long period of time, as it is a carcinogen. It was ruled unsafe in the 1995 food safety regulations report.".
- Sudan_IV thumbnail Sudan_IV.svg?width=300.
- Sudan_IV wikiPageExternalLink 26105.htm.
- Sudan_IV wikiPageExternalLink oil_red_o.htm.
- Sudan_IV wikiPageID "1688734".
- Sudan_IV wikiPageRevisionID "542566798".
- Sudan_IV hasPhotoCollection Sudan_IV.
- Sudan_IV imagefile "Sudan IV.svg".
- Sudan_IV imagesize "250".
- Sudan_IV name "Sudan IV".
- Sudan_IV othernames "Sudan R, C.I. Solvent Red 24, C.I. 26105, Lipid Crimson, Oil Red, Oil Red BB, Fat Red B, Oil Red IV, Scarlet Red, Scarlet Red N.F, Scarlet Red Scharlach, Scarlet R".
- Sudan_IV systematicname "1".
- Sudan_IV verifiedrevid "434006584".
- Sudan_IV subject Category:2-Naphthols.
- Sudan_IV subject Category:Azo_dyes.
- Sudan_IV subject Category:Fuel_dyes.
- Sudan_IV subject Category:IARC_Group_3_carcinogens.
- Sudan_IV subject Category:Solvent_dyes.
- Sudan_IV subject Category:Staining_dyes.
- Sudan_IV type Abstraction100002137.
- Sudan_IV type AzoDye114770500.
- Sudan_IV type AzoDyes.
- Sudan_IV type ColoringMaterial114984973.
- Sudan_IV type Dye114985383.
- Sudan_IV type FuelDyes.
- Sudan_IV type Material114580897.
- Sudan_IV type Matter100020827.
- Sudan_IV type Part113809207.
- Sudan_IV type PhysicalEntity100001930.
- Sudan_IV type Relation100031921.
- Sudan_IV type SolventDyes.
- Sudan_IV type StainingDyes.
- Sudan_IV type Substance100019613.
- Sudan_IV type ChemicalCompound.
- Sudan_IV type ChemicalSubstance.
- Sudan_IV type ChemicalSubstanceType.
- Sudan_IV type ChemicalObject.
- Sudan_IV type Thing.
- Sudan_IV comment "Sudan IV (C24H20N4O) is a lysochrome (fat-soluble dye) diazo dye used for the staining of lipids, triglycerides and lipoproteins on frozen paraffin sections. It has the appearance of reddish brown crystals with melting point 199 °C and maximum absorption at 520(357) nm.Sudan IV is one of the dyes used for Sudan staining. Similar dyes include Oil Red O, Sudan III, and Sudan Black B.".
- Sudan_IV label "Sudan IV".
- Sudan_IV label "Sudan IV".
- Sudan_IV label "Sudán IV".
- Sudan_IV label "蘇丹四號".
- Sudan_IV sameAs Sudán_IV.
- Sudan_IV sameAs Sudan_IV.
- Sudan_IV sameAs m.05nk5c.
- Sudan_IV sameAs Q3291758.
- Sudan_IV sameAs Q3291758.
- Sudan_IV sameAs Sudan_IV.
- Sudan_IV wasDerivedFrom Sudan_IV?oldid=542566798.
- Sudan_IV depiction Sudan_IV.svg.
- Sudan_IV isPrimaryTopicOf Sudan_IV.
- Sudan_IV name "Sudan IV".
