Ethyl 2-(5-chloropentanamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate CAS 331760-62-4
| CAS No. | 331760-62-4 |
| Molecular Formula | C16H22ClNO3S |
| Molecular Weight | 343.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 343.87 g/mol gives Ethyl 2-(5-chloropentanamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl 2-(5-chloropentanamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 331760-62-4), molecular formula C16H22ClNO3S and molecular weight 343.87 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C16H22ClNO3S, Ethyl 2-(5-chloropentanamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate contains a nitrogen-containing heterocyclic scaffold, 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 343.87 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).
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 Ethyl 2-(5-chloropentanamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-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 | C16H22ClNO3S |
| Molecular Weight | 343.87 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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