Methyl 5-(chlorosulfonyl)-4-methoxythiophene-2-carboxylate CAS 1384429-11-1
| CAS No. | 1384429-11-1 |
| Molecular Formula | C7H7ClO5S2 |
| Molecular Weight | 270.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Methyl 5-(chlorosulfonyl)-4-methoxythiophene-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.
Methyl 5-(chlorosulfonyl)-4-methoxythiophene-2-carboxylate (CAS 1384429-11-1), molecular formula C7H7ClO5S2 and molecular weight 270.71 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 5-(chlorosulfonyl)-4-methoxythiophene-2-carboxylate (C7H7ClO5S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 270.71 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C7H7ClO5S2 |
| Molecular Weight | 270.71 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.) | 1991 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Methyl Standards
- Methyl 5-(chlorosulfonyl)-4-methoxythiophene-3-carboxylate (CAS 175203-45-9)
- 3-(Chlorosulfonyl)naphthalene-1-carboxylic acid (CAS 1258652-21-9)
- 5-(Chlorosulfonyl)-1-naphthoic acid (CAS 294840-12-3)
- Methyl 5-(chlorosulfonyl)-2,4-difluorobenzoate (CAS 1099632-51-5)
- Methyl 3-(chlorosulfonyl)-2,5-difluorobenzoate (CAS 1154149-20-8)
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Recommended Standards
- 2-Chloro-N-isopropyl-N-(4-nitrobenzyl)acetamide (CAS 1353967-42-6)
- 4-((4-Chlorophenoxy)methyl)tetrahydro-2H-pyran-4-carboxylic acid (CAS 1387558-89-5)
- 2-Chloro-N-isopropyl-N-(3-nitrobenzyl)acetamide (CAS 1353955-42-6)
- Ethyl 4-(3-(2-chloroethyl)ureido)benzoate (CAS 13908-47-9)
- 1-Bromo-3-ethynyl-5-methoxybenzene (CAS 2279122-91-5)
- 4-Methyl-N-(2-oxo-1,2-dihydropyrimidin-4-yl)benzenesulfonamide (CAS 114072-05-8)
- 4-Bromobenzimidamide (CAS 22265-36-7)
- 1-(2-Cyanophenyl)-3-isopropylurea (CAS 861208-83-5)
- Ethyl 3,6-dibromo-2-fluorophenylacetate (CAS 1806351-20-1)
- Benzyl (1R,3S,5S)-3-(hydroxymethyl)-8-azabicyclo[3.2.1]octane-8-carboxylate (CAS 1629128-52-4)
- tert-Butyl 1-imino-1,4-thiazepane-4-carboxylate 1-oxide (CAS 2177264-65-0)
- 1-(tert-Butyl) 4-ethyl (3R,4S)-3-hydroxypiperidine-1,4-dicarboxylate (CAS 1805790-44-6)
- 5-(Furan-2-yl)-1-methyl-1H-pyrazole-3-carbaldehyde (CAS 876728-40-4)
- Peptide 437 (CAS CATO-CPTD788437)
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