4-((2-(Methylsulfonyl)ethyl)thio)phenol CAS 1178331-89-9
| CAS No. | 1178331-89-9 |
| Molecular Formula | C9H12O3S2 |
| Molecular Weight | 232.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-((2-(Methylsulfonyl)ethyl)thio)phenol (CAS 1178331-89-9), molecular formula C9H12O3S2 and molecular weight 232.32 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-((2-(Methylsulfonyl)ethyl)thio)phenol (C9H12O3S2) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H12O3S2 |
| Molecular Weight | 232.32 g/mol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Sulfur Atoms | 2 |
Related Methylsulfonyl Standards
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- Thiopropanal S-oxide(Propanethial S-oxide) (CAS 32157-29-2)
- Ranatensin (CAS 29451-71-6)
- Ethyl 2-morpholino-4-(trifluoromethyl)thiazole-5-carboxylate (CAS 338392-97-5)
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