5-Methoxythiophene-2-sulfonyl chloride CAS 1314904-87-4
| CAS No. | 1314904-87-4 |
| Molecular Formula | C5H5ClO3S2 |
| Molecular Weight | 212.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Methoxythiophene-2-sulfonyl chloride (CAS 1314904-87-4), a certified reference material (molecular formula C5H5ClO3S2, MW 212.67 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 5-Methoxythiophene-2-sulfonyl chloride is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 212.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 5-Methoxythiophene-2-sulfonyl chloride 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 | C5H5ClO3S2 |
| Molecular Weight | 212.67 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Methoxythiophene Standards
- 3-Methoxythiophene-2-sulfonyl chloride (CAS 184039-62-1)
- 2-Methoxythiophene-3-sulfonyl chloride (CAS 425426-96-6)
- 3-Methoxythiophene-2-sulfonamide (CAS 1394041-28-1)
- 5-Methoxythiophene-2-sulfonamide (CAS 140646-38-4)
- 4-Methoxythiophene-2-sulfonamide (CAS 142294-60-8)
- Ethyl 4-methoxythiophene-3-carboxylate (CAS 20946-39-8)
- 3-Methoxythiophene-2-carbonyl chloride (CAS 54450-14-5)
- 4-Methoxythiophene-3-carbonyl chloride (CAS 224649-28-9)
Recommended Standards
- 4-Chloro-3-methylphenylacetic acid ethyl ester (CAS 1261475-59-5)
- 4-(5-Chloro-2-methoxyphenyl)butanal (CAS 1340432-04-3)
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- 3-(tert-Butyl)-5-chloro-2-hydroxybenzaldehyde (CAS 135395-82-3)
- Ethyl 5-formyl-2-methyl-1h-pyrrole-3-carboxylate (CAS 57061-48-0)
- Methyl 1-amino-4-cyano-8-fluoro-4-phenyl-3,4-dihydronaphthalene-2-carboxylate (CAS 400087-68-5)
- 5-Bromo-6-chloro-2-phenylnicotinonitrile (CAS 1708401-31-3)
- Decylsuccinic Anhydride (CAS 18470-76-3)
- 3-Fluoro-4-(4,4-difluoropiperidin-1-yl)nitrobenzene (CAS 1239876-14-2)
- N-(4-Acetyl-5-(pyridin-2-yl)-4,5-dihydro-1,3,4-thiadiazol-2-yl)acetamide (CAS 62236-02-6)
- 8-Bromo-4,5-dihydrobenzo[2,3]oxepino[4,5-d]thiazole-2-carboxylic acid (CAS 1189815-93-7)
- C-(3,5-Dimethyl-2-phenyl-1H-indol-7-yl)-methylamine (CAS 1171934-81-8)
- 4-(4-Chlorobenzoyl)-1H-pyrrole-2-carbonitrile (CAS 338407-27-5)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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 18665070610 / Nicole.chen@cato-chem.com