Methyl 3-chloro-4-(methylsulfonyl)thiophene-2-carboxylate CAS 175201-76-0
| CAS No. | 175201-76-0 |
| Molecular Formula | C7H7ClO4S2 |
| Molecular Weight | 254.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Methyl 3-chloro-4-(methylsulfonyl)thiophene-2-carboxylate (C7H7ClO4S2) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 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).
CATO supplies Methyl 3-chloro-4-(methylsulfonyl)thiophene-2-carboxylate (CAS 175201-76-0), a certified reference material (molecular formula C7H7ClO4S2, MW 254.71 g/mol) for analytical method development and quality control.
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 | C7H7ClO4S2 |
| Molecular Weight | 254.71 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
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- Atracurium Impurity 114 (CAS CATO-C4X-1850114)
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- 2-FLUORO-6-IODOPYRIDIN-3-AMINE (CAS 1422443-52-4)
- cis-4-(Dimethylamino)cyclohexanol (CAS 103023-50-3)
- Fragment-[3-31]-Liraglutide (CAS CATO-C4X-199232)
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