Methyl 3-(chlorosulfonyl)-5-(p-tolyl)thiophene-2-carboxylate CAS 1375472-03-9
| CAS No. | 1375472-03-9 |
| Molecular Formula | C13H11ClO4S2 |
| Molecular Weight | 330.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H11ClO4S2, Methyl 3-(chlorosulfonyl)-5-(p-tolyl)thiophene-2-carboxylate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 330.81 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Methyl 3-(chlorosulfonyl)-5-(p-tolyl)thiophene-2-carboxylate (CAS 1375472-03-9) is a high-purity analytical reference standard with the molecular formula C13H11ClO4S2 and a molecular weight of 330.81 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Methyl 3-(chlorosulfonyl)-5-(p-tolyl)thiophene-2-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H11ClO4S2 |
| Molecular Weight | 330.81 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Methyl Standards
- Methyl 3-(chlorosulfonyl)-5-(o-tolyl)thiophene-2-carboxylate (CAS 1375474-10-4)
- 4-[(Chlorosulfonyl)methyl]-1-piperidinecarboxylic Acid Phenylmethyl Ester (CAS 1211587-42-6)
- Benzyl 2-((chlorosulfonyl)methyl)piperidine-1-carboxylate (CAS 1355455-44-5)
- Benzyl 3-((chlorosulfonyl)methyl)-4-methylpyrrolidine-1-carboxylate (CAS 2126161-78-0)
- Benzyl 3-[(chlorosulfonyl)methyl]piperidine-1-carboxylate (CAS 242459-83-2)
- benzyl 2-[(chlorosulfonyl)methyl]morpholine-4-carboxylate (CAS 1803584-56-6)
- Methyl 3-(chlorosulfonyl)-4-(3-fluorophenyl)thiophene-2-carboxylate (CAS 1291487-04-1)
- Methyl 3-(chlorosulfonyl)-5-(3-fluorophenyl)thiophene-2-carboxylate (CAS 1375473-44-1)
Recommended Standards
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