Sodium p-toluenesulfonate CAS 657-84-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 657-84-1 |
| Molecular Formula | C7H7O3S Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order Sodium p-toluenesulfonate (CAS 657-84-1) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C7H7O3S Na. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C7H7O3S Na |
| Molecular Weight | 194.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 1 |
Recommended Standards
- (αS,5R)-α,2-Diamino-4,5-dihydro-1H-imidazole-5 Propanoic Acid (CAS 21209-39-2)
- N-(4-Methoxyphenyl)imidazo[1,2-a]pyridin-3-amine (CAS 823806-69-5)
- 6-(Dimethoxymethyl)-1H-indazol-3-amine (CAS 1864051-92-2)
- 3-Methylbut-3-en-1-yl pent-4-enoate (CAS 64861-90-1)
- Ethyl 2,6-Dichloropyrimidine-4-carboxylate (CAS 18127-43-0)
- tert-Butyl (4-bromo-5-methylisoxazol-3-yl)(tert-butoxycarbonyl)carbamate (CAS 1040276-58-1)
- [Ser]8-Acetylated Semaglutide (CAS CATO-C4X-2226218)
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