| CAS No. | 337495-86-0 |
| Molecular Formula | C28H23N3OS |
| Molecular Weight | 449.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 449.57 g/mol gives 3-Amino-N-(2-ethylphenyl)-4,6-diphenylthieno[2,3-b]pyridine-2-carboxamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Amino-N-(2-ethylphenyl)-4,6-diphenylthieno[2,3-b]pyridine-2-carboxamide (CAS 337495-86-0), molecular formula C28H23N3OS and molecular weight 449.57 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Amino-N-(2-ethylphenyl)-4,6-diphenylthieno[2,3-b]pyridine-2-carboxamide (C28H23N3OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 19.0, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 449.57 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), 3-Amino-N-(2-ethylphenyl)-4,6-diphenylthieno[2,3-b]pyridine-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.
| Molecular Formula | C28H23N3OS |
| Molecular Weight | 449.57 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |