n-Ethyl-2-(2-(4-methoxyphenoxy)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide CAS 503865-01-8
| CAS No. | 503865-01-8 |
| Molecular Formula | C20H24N2O4S |
| Molecular Weight | 388.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of n-Ethyl-2-(2-(4-methoxyphenoxy)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
n-Ethyl-2-(2-(4-methoxyphenoxy)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (CAS 503865-01-8), molecular formula C20H24N2O4S and molecular weight 388.48 g/mol, is a CATO reference standard with documented purity and traceability.
n-Ethyl-2-(2-(4-methoxyphenoxy)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (C20H24N2O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), n-Ethyl-2-(2-(4-methoxyphenoxy)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide 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 | C20H24N2O4S |
| Molecular Weight | 388.48 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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