Sodium 2-naphthol-7-sulfonate CAS 135-55-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 135-55-7 |
| Molecular Formula | C10H7O4S Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Sodium 2-naphthol-7-sulfonate (CAS 135-55-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H7O4S Na. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H7O4S Na |
| Molecular Weight | 246.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 1 |
Related Sodium Standards
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- 1-Methyl-2-naphthol (CAS 1076-26-2)
- 2-Naphthol-6,8-Disulfonic Acid (CAS 118-32-1)
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- 1-Naphthol-D7 (CAS 124251-84-9)
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Recommended Standards
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Why CATO?
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