Benzopurpurin 4B is a synthetic azo dye that is widely used as a laboratory stain, in analytical chemistry, and as a dye in textiles. It is a water-soluble dye which occurs as dark red to brown powder and is used extensively in biological staining and dye processes in industry. It also acts as an indicator for analytical uses in a laboratory due to its dye binding and color forming properties.
CAS No. : 992-59-6Â
Synonyms: Benzopurpurin 4B, CI 23500, azamin4b, eriered4b, paperred4b, purpurin4b
Chemical Properties
| Physical Properties | |
| Chemical formula | C34H26N6Na2O6S2 |
| IUPAC Name | disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl] -3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-1-sulfonate |
| Molecular weight | 724.7 g/m |
| Solubility | Soluble in water |
| Physical State | Powder Solid |
| Color | Dark red to brown |
| Ph range | 1.2(violet)-4(red) |
| λmax | 500nm |
| Stability | Stable. Incompatible with strong oxidizing agents |
| Melting point | >250°C |
Biological & Research Applications
Textile & Industrial Applications
Laboratory & Analytical Applications
| Pictograms : |
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| Hazard Statements : | H350 – May cause cancer. |
| Precautionary statements : | P201 – Obtain special instructions before use. P202 – Do not handle until all safety precautions have been read and understood. P280 – Wear protective gloves/protective clothing/eye protection/face protection. P308+P313 IF exposed or concerned: Get medical advice/attention. P405 – Store locked up. P501 – Dispose of contents / container in accordance with local / regional / national / international regulations. |
Benzopurpurin 4B is a synthetic azo dye that is widely used as a laboratory stain, in analytical chemistry, and as a dye in textiles. It is a water-soluble dye which occurs as dark red to brown powder and is used extensively in biological staining and dye processes in industry. It also acts as an indicator for analytical uses in a laboratory due to its dye binding and color forming properties.
CAS No. : 992-59-6Â
Synonyms: Benzopurpurin 4B, CI 23500, azamin4b, eriered4b, paperred4b, purpurin4b
Chemical Properties
| Physical Properties | |
| Chemical formula | C34H26N6Na2O6S2 |
| IUPAC Name | disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl] -3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-1-sulfonate |
| Molecular weight | 724.7 g/m |
| Solubility | Soluble in water |
| Physical State | Powder Solid |
| Color | Dark red to brown |
| Ph range | 1.2(violet)-4(red) |
| λmax | 500nm |
| Stability | Stable. Incompatible with strong oxidizing agents |
| Melting point | >250°C |
Biological & Research Applications
Textile & Industrial Applications
Laboratory & Analytical Applications
| Pictograms : |
|
| Hazard Statements : | H350 – May cause cancer. |
| Precautionary statements : | P201 – Obtain special instructions before use. P202 – Do not handle until all safety precautions have been read and understood. P280 – Wear protective gloves/protective clothing/eye protection/face protection. P308+P313 IF exposed or concerned: Get medical advice/attention. P405 – Store locked up. P501 – Dispose of contents / container in accordance with local / regional / national / international regulations. |
Benzopurpurin 4B is a synthetic direct azo dye widely used in industrial and laboratory applications.
Benzopurpurin 4B is water soluble and readily forms a red-colored aqueous solution. Its good solubility in water makes it suitable for textile dyeing, paper coloration, and biological staining applications. However, it is generally less soluble in most organic solvents
Benzopurpurin 4B indicator is used in analytical chemistry, staining procedures, and laboratory research applications.
