Pyridin-1-ium 4-methylbenzenesulfonate CAS 24057-28-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 24057-28-1 |
| Molecular Formula | C7H7O3S C5H6N |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Pyridin-1-ium 4-methylbenzenesulfonate (CAS 24057-28-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H7O3S C5H6N. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H7O3S C5H6N |
| Molecular Weight | 251.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Pyridin Standards
- 3-[(E)-2-(Pyridin-3-yl)ethenyl]-1,2-dihydroquinoxalin-2-one (CAS 1000169-10-7)
- 2-(pyridin-2-ylsulfanyl)acetic acid (CAS 10002-29-6)
- 4-(Pyridin-3-yloxy)benzenesulfonic acid (CAS 1000340-09-9)
- 2-(2-Oxo-2-(pyridin-4-yl)ethylidene)thiazolidin-4-one (CAS 1000932-15-9)
- 2-[2-oxo-2-(pyridin-3-yl)ethylidene]-1,3-thiazolidin-4-one (CAS 1000932-62-6)
- N-(pyridin-3-ylmethyl)sulfamide (CAS 1000933-31-2)
- Ethyl 1-(2-pyridin-2-ylethyl)piperidine-4-carboxylate (CAS 1000941-29-6)
- 1-Methyl-4-(pyridin-2-ylmethyl)piperazine (CAS 100158-57-4)
Recommended Standards
- H-Val-Ser-OH (CAS 13588-94-8)
- 3-Methoxyphencyclidine hydrochloride (CAS 91164-58-8)
- 2-Benzimidazolemalonaldehyde (CAS 78587-80-1)
- Ethyl 6-chloro-5-methylpicolinate (CAS 178421-21-1)
- 2-{[(4-chlorophenyl)methyl]sulfanyl}acetonitrile (CAS 21681-87-8)
- 1-butyl-5-(piperidin-1-ylsulfonyl)-1H-benzimidazole-2-thiol (CAS 725710-54-3)
- Semaglutide impurity 85 (CAS CATO-C4X-222685)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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