4-((2,4-Dimethylphenyl)diazenyl)-3-hydroxynaphthalene-2,7-disulfonic acid CAS 7481-49-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 7481-49-4 |
| Molecular Formula | C18H16N2O7S2 |
| Molecular Weight | 436.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-((2,4-Dimethylphenyl)diazenyl)-3-hydroxynaphthalene-2,7-disulfonic acid (CAS 7481-49-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C18H16N2O7S2. Molecular weight: 436.46 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C18H16N2O7S2 |
| Molecular Weight | 436.46 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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