N,N'-(ethane-1,2-diyl)bis(4-methyl-N-(thiophen-2-ylmethyl)benzamide) CAS 338775-19-2
| CAS No. | 338775-19-2 |
| Molecular Formula | C28H28N2O2S2 |
| Molecular Weight | 488.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
N,N'-(ethane-1,2-diyl)bis(4-methyl-N-(thiophen-2-ylmethyl)benzamide) (CAS 338775-19-2), molecular formula C28H28N2O2S2 and molecular weight 488.66 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of N,N'-(ethane-1,2-diyl)bis(4-methyl-N-(thiophen-2-ylmethyl)benzamide) (C28H28N2O2S2) is characterized by a steroid core, an amide group, a sulfone group, 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 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.
Physical & Chemical Properties
| Molecular Formula | C28H28N2O2S2 |
| Molecular Weight | 488.66 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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