Methyl 5-((4-chlorophenyl)sulfonamido)benzo[b]thiophene-2-carboxylate CAS 477847-44-2
| CAS No. | 477847-44-2 |
| Molecular Formula | C16H12ClNO4S2 |
| Molecular Weight | 381.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 5-((4-chlorophenyl)sulfonamido)benzo[b]thiophene-2-carboxylate (CAS 477847-44-2), molecular formula C16H12ClNO4S2 and molecular weight 381.85 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C16H12ClNO4S2, Methyl 5-((4-chlorophenyl)sulfonamido)benzo[b]thiophene-2-carboxylate contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 381.85 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), Methyl 5-((4-chlorophenyl)sulfonamido)benzo[b]thiophene-2-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H12ClNO4S2 |
| Molecular Weight | 381.85 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 5-(2,4,6-Tribromophenyl)oxazole (CAS 2364584-82-5)
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- Z-2-Nal-chloromethylketone (C-3495.0250) (CAS 128019-71-6)
- CAS 2361138-33-0 (CAS 2361138-33-0)
- 3-[(3-Pyridinyloxy)methyl]piperidine hydrochloride (CAS 1220029-51-5)
- 2'-Chloro-[1,1'-biphenyl]-2-carbaldehyde (CAS 223575-76-6)
- 4-Amino-5-(difluoromethyl)-6-methylpyridin-2-ol (CAS 1805080-20-9)
- 4-(Benzyloxy)butan-2-ol (CAS 4799-69-3)
- 2-Methyl-6-trifluoromethyl-4-quinolinol (CAS 203626-74-8)
- 5-Chloro-2-(4-(furan-2-yl)benzyl)isothiazol-3(2H)-one (CAS 918107-73-0)
- Bis(3-bromothiophen-2-yl)sulfane (CAS 28504-80-5)
- 3-(2,4-Difluorophenyl)butan-2-ol (CAS 1513139-47-3)
- 4-(4-Methylphenyl)-5-propyl-1,3-thiazol-2-ylamine (CAS 433254-87-6)
- Semaglutide Impurity 129 (CAS 2490269-79-7)
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