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- سودان IV (بالإنجليزية: Sudan IV) هي صبغة ديازو تذوب في الدهون وتحمل الصيغة الجزيئية (C24H20N4O) وتستخدم لصبغ الليبيدات والثلاثي غليسيريد والبروتينات الليبيدية في مقطع مجمد من شمع البرافين. وهي تمتلك مظهر بلورات بنية محمرة وتمتلك درجة انصهار 199° سليسيوس ومعدل امتصاص أعلى 520(357) نانومتر. (ar)
- Sudan IV ist ein synthetisch hergestellter Bisazofarbstoff aus der Gruppe der Lösungsmittelfarbstoffe. (de)
- Sudan IV (C24H20N4O) es un colorante diazo lisocromo (soluble en grasa) que se utiliza para la tinción de lípidos, triglicéridos y lipoproteínas en secciones de parafina congeladas. Tiene el aspecto de cristales marrón rojizo con un punto de fusión de 199 °C y una absorción máxima a 520(357) nm. Las técnicas de coloración para la identificación de lípidos sirven para determinar principalmente lípidos homofásicos. El Sudán IV, llamado Escarlata R, se basa en que el colorante es más soluble en lípidos que en el propio disolvente en el que va contenido. Se consideran lípidos todas aquellas sustancias orgánicas insolubles en agua total o parcialmente, pero solubles en acetona, alcohol, cloroformo, éter, etc... y que en general son untuosas al tacto. (es)
- 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. 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). 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 carcinogen 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. (en)
- Sudan IV (C24H20N4O) ou mais raramente sudão IV é um corante azóico lisocrômico (corante soluvel em gorduras). Em sua forma purificada é chamado de escarlate de Biebrich R, o qual não deve ser confundido com o corante hidrossolúvel escarlate de Biebrich. (pt)
- 蘇丹四號（英語：Sudan IV）是一種偶氮染色劑，化學式為C24H20N4O，常用於凍結石蠟切片的脂質和脂蛋白的染色。 蘇丹一號、三號和四號被國際癌癥研究機構認定為3級致癌物質。 蘇丹四號的精煉形式稱作Biebrich scarlet R，因此易於Biebrich scarlet混淆。工業上常用於油、蠟等非極性物質的染色。在英國也用作染料，并因此得名Oil Tax Red。 (zh)
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- 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 (en)
- 1-{2-Methyl-4-[(2-methylphenyl)diazenyl]phenyl}azonaphthalen-2-ol (en)
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- 1-[{2-Methyl-4-[(2-methylphenyl)diazenyl]phenyl}diazenyl]naphthalen-2-ol (en)
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- 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 (en)
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- سودان IV (بالإنجليزية: Sudan IV) هي صبغة ديازو تذوب في الدهون وتحمل الصيغة الجزيئية (C24H20N4O) وتستخدم لصبغ الليبيدات والثلاثي غليسيريد والبروتينات الليبيدية في مقطع مجمد من شمع البرافين. وهي تمتلك مظهر بلورات بنية محمرة وتمتلك درجة انصهار 199° سليسيوس ومعدل امتصاص أعلى 520(357) نانومتر. (ar)
- Sudan IV ist ein synthetisch hergestellter Bisazofarbstoff aus der Gruppe der Lösungsmittelfarbstoffe. (de)
- Sudan IV (C24H20N4O) ou mais raramente sudão IV é um corante azóico lisocrômico (corante soluvel em gorduras). Em sua forma purificada é chamado de escarlate de Biebrich R, o qual não deve ser confundido com o corante hidrossolúvel escarlate de Biebrich. (pt)
- 蘇丹四號（英語：Sudan IV）是一種偶氮染色劑，化學式為C24H20N4O，常用於凍結石蠟切片的脂質和脂蛋白的染色。 蘇丹一號、三號和四號被國際癌癥研究機構認定為3級致癌物質。 蘇丹四號的精煉形式稱作Biebrich scarlet R，因此易於Biebrich scarlet混淆。工業上常用於油、蠟等非極性物質的染色。在英國也用作染料，并因此得名Oil Tax Red。 (zh)
- Sudan IV (C24H20N4O) es un colorante diazo lisocromo (soluble en grasa) que se utiliza para la tinción de lípidos, triglicéridos y lipoproteínas en secciones de parafina congeladas. Tiene el aspecto de cristales marrón rojizo con un punto de fusión de 199 °C y una absorción máxima a 520(357) nm. (es)
- 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 I, Sudan III, and Sudan IV have been classified as category 3 carcinogen 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. (en)
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- سودان IV (ar)
- Sudan IV (de)
- Sudán IV (es)
- Sudan IV (en)
- Sudan IV (pt)
- 蘇丹四號 (zh)
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