苏丹四号(英语:Sudan IV)是一种偶氮染色剂化学式为C24H20N4O,常用于冻结石蜡切片的脂质脂蛋白的染色。

Quick Facts 苏丹四号 Sudan IV, 识别 ...
苏丹四号
Sudan IV
系统名
1-(2-methyl-4-(2-methylphenyldiazenyl) phenyl) azonapthalen-2-ol
别名 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
识别
CAS号 85-83-6  checkY
ChemSpider 11252033
SMILES
 
  • Cc4ccccc4/N=N/c3ccc(/N=N/c1c2ccccc2ccc1O)c(C)c3
InChI
 
  • 1S/C24H20N4O/c1-16-7-3-6-10-21(16)26-25-19-12-13-22(17(2)15-19)27-28-24-20-9-5-4-8-18(20)11-14-23(24)29/h3-15,29H,1-2H3/b26-25+,28-27+
InChIKey RCTGMCJBQGBLKT-PAMTUDGEBE
KEGG C19520
性质
化学式 C24H20N4O
熔点 199°C
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。
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苏丹一号三号和四号被国际癌症研究机构认定为3级致癌物质。[1]

苏丹四号的精炼形式称作Biebrich scarlet R,因此易于Biebrich scarlet混淆。工业上常用于油、蜡等非极性物质的染色。在英国也用作染料,并因此得名Oil Tax Red

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