Sudan IV (C 24 H 20 N 4 O) 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.

最常见的脂质染色方法包括 苏丹iii染色 、 苏丹iv染色 、苏丹黑和 油红o染色 。一般用于病理状态下组织脂肪的检测。

苏丹iv，又名猩红、溶剂红24，是一种有机化合物，化学式为c24h20n4o，主要用作生物染色剂，也可用于油脂、水、肥皂、蜡烛、橡胶玩具、塑料制品的着色。

Sudan IV is a stain used to stain lipids. Add six drops of Sudan IV to each tube and mix the contents by swirling the test tubes. Describe what happens to the oil and water mixture.

Sudan stains and Sudan dyes are synthetic organic compounds that are used as dyes for various plastics (plastic colorants) and are also used to stain sudanophilic biological samples, usually lipids. Sudan II, Sudan III, Sudan IV, Oil Red O, and Sudan Black B are important members of this class of compounds (see images below).

蘇丹四號 （英語： Sudan IV）是一種 偶氮染色劑， 化學式 為C 24 H 20 N 4 O，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。 [1] 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，並因此得名 Oil Tax Red。 ^ Refat NA, Ibrahim ZS, Moustafa GG, Sakamoto KQ, Ishizuka M, Fujita S.

Sudan IV is a bis(azo) compound that is 2-naphthol substituted at position 1 by a {2-methyl-4-[(2-methylphenyl)diazenyl]phenyl}diazenyl group. A fat-soluble dye predominantly used for demonstrating triglycerides in frozen sections, but which may also stain some protein bound lipids in paraffin sections.

Discovery of a potent HMG-CoA reductase degrader that eliminates statin-induced reductase accumulation and lowers cholesterol. Buy Sudan IV powder with ?80% dye content, a hydrophobic azo dye suitable for staining triglycerides. …

Sudan IV Product Number S 8756 Store at Room Temperature Product Description Molecular Formula: C24H20N4O Molecular Weight: 380.5 CAS Number: 85-83-6 λmax: 520 nm, 357 nm (toluene) 1 Synonyms: Oil Red IV, Fat ponceau, Cerotin ponceau 3B2 This red β-naphthol disazo dye has the same basic structure as Sudan III with two added methyl groups.

苏丹红Ⅳ是一种红色结晶粉末，可溶于有机溶剂如乙醇、二甲醚和丙酮，不溶于水。 苏丹红Ⅳ的制法主要是通过硝基苯与含氮杂环丁烷反应得到的。 具体步骤为，首先将硝基苯与含氮杂环丁烷在酸性条件下反应，生成苏丹红Ⅳ的前体化合物。 然后，在氧化剂的作用下，将前体化合物氧化为最终的苏丹红Ⅳ产物。 它可能对皮肤、眼睛和呼吸道有刺激作用，在使用时应戴上适当的防护装备，如手套、护目镜和口罩。 苏丹红Ⅳ具有一定的毒性，要避免直接接触或摄入。 在使用和储存 …