Direct Yellow 4 CAS 3051-11-4
Purity Technical GradeIn StockPharmaceutical Standards
| CAS No. | 3051-11-4 |
| Molecular Formula | C26H18N4O8S2 2*Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Direct Yellow 4 (CAS 3051-11-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C26H18N4O8S2 2*Na. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C26H18N4O8S2 2*Na |
| Molecular Weight | 601.56 g/mol |
| Purity | Technical Grade |
| 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
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Why CATO?
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