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Sodium Diphenylamine-4-sulfonate is a water-soluble organic sulfonate salt frequently used as a redox indicator and intermediate in analytical chemistry. It is valued for its distinctive UV-Vis absorbance at λ_max ≈ 292–293 nm, and its ability to form charge-transfer complexes with oxidizing agents.
Key Features
- High Purity: ≥98% by HPLC; suitable for analytical and research workflows
- Redox Indicator: Commonly used in redox titrations (e.g., permanganate or cerium assays)
- UV-Vis Active: Strong absorbance at 292–293 nm in aqueous media
- Stable Solid Form: Supplied as a white to pale brown or grey powder
- Solubility: Water-soluble and compatible with aqueous-phase reactions
Chemical Identity & Properties
| Property | Value |
|---|---|
| CAS Number | 6152-67-6 |
| IUPAC Name | 4-(phenylamino)benzene-1-sulfonic acid sodium |
| Molecular Formula | C₁₂H₁₁NNaO₃S |
| Molecular Weight | 272.27 g/mol |
| Synonyms | Sodium 4-(phenylamino)benzenesulfonate |
| SMILES | [Na].OS(=O)(=O)C1=CC=C(NC2=CC=CC=C2)C=C1 |
| InChI Key | VMVSDVIYIMNZBS-UHFFFAOYSA-N |
| Appearance | White to pale brown or pale grey powder |
| UV-Vis λ_max | 292–293 nm (in water) |
| Form | Powder |
| Purity (Assay, HPLC) | >97.5% |
| Intended Use | Research Use Only (RUO) |
Applications
- Redox Indicator in titrations (e.g., Fe²⁺/Fe³⁺, MnO₄⁻, Ce⁴⁺ systems)
- UV-Visible Spectroscopy studies and detection methods
- Organic and coordination chemistry research
- Analytical chemistry teaching laboratories
- Colorimetric assay development
Compliance and Handling
- Brand Lineage: Previously Alfa Aesar, now Thermo Scientific™ Chemicals
- Grade: Research Use Only (RUO)
- Handling: Store in a dry place at room temperature; avoid exposure to light and moisture
- Documentation: Certificate of Analysis, SDS, and Specification Sheet available upon request
Thermo Scientific™ Sodium Diphenylamine-4-sulfonate is a high-purity analytical reagent widely used in redox titration and UV-Vis spectrophotometric applications. Its strong optical absorbance and redox sensitivity make it ideal for precise analytical determinations and colorimetric endpoint detection in chemical laboratories.
No resources are currently available for this product.
Sodium Diphenylamine-4-sulfonate is a water-soluble organic sulfonate salt frequently used as a redox indicator and intermediate in analytical chemistry. It is valued for its distinctive UV-Vis absorbance at λ_max ≈ 292–293 nm, and its ability to form charge-transfer complexes with oxidizing agents.
Key Features
- High Purity: ≥98% by HPLC; suitable for analytical and research workflows
- Redox Indicator: Commonly used in redox titrations (e.g., permanganate or cerium assays)
- UV-Vis Active: Strong absorbance at 292–293 nm in aqueous media
- Stable Solid Form: Supplied as a white to pale brown or grey powder
- Solubility: Water-soluble and compatible with aqueous-phase reactions
Chemical Identity & Properties
| Property | Value |
|---|---|
| CAS Number | 6152-67-6 |
| IUPAC Name | 4-(phenylamino)benzene-1-sulfonic acid sodium |
| Molecular Formula | C₁₂H₁₁NNaO₃S |
| Molecular Weight | 272.27 g/mol |
| Synonyms | Sodium 4-(phenylamino)benzenesulfonate |
| SMILES | [Na].OS(=O)(=O)C1=CC=C(NC2=CC=CC=C2)C=C1 |
| InChI Key | VMVSDVIYIMNZBS-UHFFFAOYSA-N |
| Appearance | White to pale brown or pale grey powder |
| UV-Vis λ_max | 292–293 nm (in water) |
| Form | Powder |
| Purity (Assay, HPLC) | >97.5% |
| Intended Use | Research Use Only (RUO) |
Applications
- Redox Indicator in titrations (e.g., Fe²⁺/Fe³⁺, MnO₄⁻, Ce⁴⁺ systems)
- UV-Visible Spectroscopy studies and detection methods
- Organic and coordination chemistry research
- Analytical chemistry teaching laboratories
- Colorimetric assay development
Compliance and Handling
- Brand Lineage: Previously Alfa Aesar, now Thermo Scientific™ Chemicals
- Grade: Research Use Only (RUO)
- Handling: Store in a dry place at room temperature; avoid exposure to light and moisture
- Documentation: Certificate of Analysis, SDS, and Specification Sheet available upon request
Thermo Scientific™ Sodium Diphenylamine-4-sulfonate is a high-purity analytical reagent widely used in redox titration and UV-Vis spectrophotometric applications. Its strong optical absorbance and redox sensitivity make it ideal for precise analytical determinations and colorimetric endpoint detection in chemical laboratories.
No resources are currently available for this product.
Specifications
| Pack Size | 5g, 25g |