Hydroxynaphthol Blue CAS 63451-35-4
Purity ≥80%In StockPharmaceutical Standards
| CAS No. | 63451-35-4 |
| Molecular Formula | C20H11N2O11S3 3*Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Hydroxynaphthol Blue (CAS 63451-35-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H11N2O11S3 3*Na. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C20H11N2O11S3 3*Na |
| Molecular Weight | 574.48 g/mol |
| Purity | ≥80% |
| 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) | 16.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
Related Hydroxynaphthol Standards
Recommended Standards
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- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
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