Sudan Red 7B is a synthetic, lipid-soluble dye of the Sudan family of hydrophobic staining dyes. It is classified as a diazo dye and is known for its strong red color and its solubility in organic solvents rather than water. It is commonly used to stain fats, oils, and other lipid-containing structures in biological samples due to its affinity for lipids. It is used in the lab to identify and study the distribution of lipids in plant and animal tissues. It can also stain certain protein-bound lipids in the presence of suitable solvents and is useful for detecting suberin layers in plant cell walls. In addition to research applications, it has also been used as a coloring agent in industrial materials such as plastics and textiles.
CAS NO.: Â 6368-72-5
Synonyms: Fat Red 7B, Fat Red bluish, Solvent Red 19
| Physical Properties | |
| Chemical formula | C24H21N5 |
| IUPAC Name | N-ethyl-1-[(4-phenyldiazenylphenyl)diazenyl]naphthalen-2-amine |
| Molecular weight | 379.5 g/mol |
| Solubility | Insoluble in water |
| Form | Powder |
| Storage | Store at Room Temperature |
| Chemical Properties | |
| Color | Dark red to maroon |
| Physical State | Solid |
| Melting Point | 130 °C |
| Odor | Odorless |
| Pictograms : |  |
| Hazard Statements : | H302: Harmful if swallowed.H315 Causes skin irritation |
| Precautionary statements : | P261: Avoid breathing dust/fume/gas/mist/vapours/spray. P264: Wash hands thoroughly after handling P270: Do not eat, drink or smoke when using this product. P271: Use only outdoors or in a well-ventilated area. P280: Wear protective gloves/protective clothing/eye protection/face protection |
Sudan Red 7B is a synthetic, lipid-soluble dye of the Sudan family of hydrophobic staining dyes. It is classified as a diazo dye and is known for its strong red color and its solubility in organic solvents rather than water. It is commonly used to stain fats, oils, and other lipid-containing structures in biological samples due to its affinity for lipids. It is used in the lab to identify and study the distribution of lipids in plant and animal tissues. It can also stain certain protein-bound lipids in the presence of suitable solvents and is useful for detecting suberin layers in plant cell walls. In addition to research applications, it has also been used as a coloring agent in industrial materials such as plastics and textiles.
CAS NO.: Â 6368-72-5
Synonyms: Fat Red 7B, Fat Red bluish, Solvent Red 19
| Physical Properties | |
| Chemical formula | C24H21N5 |
| IUPAC Name | N-ethyl-1-[(4-phenyldiazenylphenyl)diazenyl]naphthalen-2-amine |
| Molecular weight | 379.5 g/mol |
| Solubility | Insoluble in water |
| Form | Powder |
| Storage | Store at Room Temperature |
| Chemical Properties | |
| Color | Dark red to maroon |
| Physical State | Solid |
| Melting Point | 130 °C |
| Odor | Odorless |
| Pictograms : | |
| Hazard Statements : | H302: Harmful if swallowed.H315 Causes skin irritation |
| Precautionary statements : | P261: Avoid breathing dust/fume/gas/mist/vapours/spray. P264: Wash hands thoroughly after handling P270: Do not eat, drink or smoke when using this product. P271: Use only outdoors or in a well-ventilated area. P280: Wear protective gloves/protective clothing/eye protection/face protection |
Sudan Red 7B is mainly used as a lipid stain to identify fats and lipid-containing structures in biological samples. It is also used to stain suberin in plants and in some industrial staining applications. Its good affinity to lipid materials makes it useful in research for the identification of fats and tissue analysis.
Sudan Red 7B is not soluble in water. It is a lipophilic dye, which means it dissolves better in organic solvents and also mixes well with lipid materials. This property allows the dye to selectively interact with the fat components during the staining applications.
Sudan Red 7B is also known as Fat Red due to its property of staining fats and lipid-rich substances. This makes it easy to study these components in a microscope. The name reflects its common use in visualizing lipids and its usual red color.
Sudan Red 7B can be used for staining of plant tissues, especially for detection of suberin-containing structures in plant cell walls. It enables researchers to analyze lipid barriers and structural properties in plant samples.
Sudan Red 7B is a diazo dye, belonging to the family of Sudan dyes. These dyes are known for their hydrophobic properties and for staining lipid-based materials. The color properties and the interaction with non-polar substances are determined by the chemical structure.
