4-Hydroxy-2,3,5-trimethylbenzenesulfonic acid CAS 40764-21-4
Purity >95%In StockPharmaceutical Standards
| CAS No. | 40764-21-4 |
| Molecular Formula | C9H12O4S |
| Molecular Weight | 216.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 4-Hydroxy-2,3,5-trimethylbenzenesulfonic acid (CAS 40764-21-4) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C9H12O4S. Molecular weight: 216.25 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C9H12O4S |
| Molecular Weight | 216.25 g/mol |
| Purity | >95% |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Sulfur Atoms | 1 |
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