Chocolate Brown HT CAS 4553-89-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4553-89-3 |
| Molecular Formula | C27H18N4O9S2 2*Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Chocolate Brown HT (CAS 4553-89-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C27H18N4O9S2 2*Na. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C27H18N4O9S2 2*Na |
| Molecular Weight | 629.57 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com