Product nameSudan red IV, Red beta-naphthol diazo dye.
DescriptionRed β-naphthol diazo dye used for staining triglycerides, lipids and lipoproteins in cells and tissues.
- Biebrich scarlet R fat soluble
- Fat Ponceau R or 4
- Lipid Crimson
Fat-soluble dye often used for staining triglycerides, lipids and lipoproteins present in cells and tissues. This red β-naphthol diazo dye has the same basic structure as Sudan III with two added methyl groups increasing the deepness and intensity of the stain. Sudan dyes are a group of lipid soluble solvent dyes often called lysochromes. With the use of certain solvents, may also be used to stain some protein bound lipids in paraffin sections.
Storage instructionsStore at Room Temperature. The product can be stored for up to 12 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
This product has been referenced in:
- Mulvihill EE et al. Naringenin decreases progression of atherosclerosis by improving dyslipidemia in high-fat-fed low-density lipoprotein receptor-null mice. Arterioscler Thromb Vasc Biol 30:742-8 (2010). Read more (PubMed: 20110573) »
- Yamazaki Y et al. Treatment with SRT1720, a SIRT1 Activator, Ameliorates Fatty Liver with Reduced Expression of Lipogenic Enzymes in MSG Mice. Am J Physiol Endocrinol Metab : (2009). Read more (PubMed: 19724016) »
- Li L et al. Binding of Sudan II and IV to lecithin liposomes and E. coli membranes: insights into the toxicity of hydrophobic azo dyes. BMC Struct Biol 7:16 (2007). Read more (PubMed: 17389047) »
- Xiao W et al. Acetylated low-density lipoprotein-encapsulated cholesteryl 1,3-diiopanoate glyceryl ether for the detection of atherosclerosis in rabbits. J Nucl Med 44:770-3 (2003). Read more (PubMed: 12732679) »