n-Ethyl-5-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxamide CAS 1325854-23-6
| CAS No. | 1325854-23-6 |
| Molecular Formula | C12H17NOS |
| Molecular Weight | 223.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
n-Ethyl-5-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxamide (CAS 1325854-23-6) is a high-purity analytical reference standard with the molecular formula C12H17NOS and a molecular weight of 223.33 g/mol.
The molecular framework of n-Ethyl-5-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxamide (C12H17NOS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), n-Ethyl-5-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-2-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 | C12H17NOS |
| Molecular Weight | 223.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
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- 3-[(oxan-4-ylsulfanyl)methyl]aniline (CAS 1311318-37-2)
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