Sodium hydrogen phthalate half-hydrate CAS 57116-34-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 57116-34-4 |
| Molecular Formula | C8H6O4 Na H2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order Sodium hydrogen phthalate half-hydrate (CAS 57116-34-4) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C8H6O4 Na H2O. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C8H6O4 Na H2O |
| Molecular Weight | 207.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
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