4-(3-(4-(sec-Butyl)phenyl)-3-oxopropyl)-1,2-diphenylpyrazolidine-3,5-dione CAS 55404-68-7
| CAS No. | 55404-68-7 |
| Molecular Formula | C28H28N2O3 |
| Molecular Weight | 440.53 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.
4-(3-(4-(sec-Butyl)phenyl)-3-oxopropyl)-1,2-diphenylpyrazolidine-3,5-dione (CAS 55404-68-7), molecular formula C28H28N2O3 and molecular weight 440.53 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(3-(4-(sec-Butyl)phenyl)-3-oxopropyl)-1,2-diphenylpyrazolidine-3,5-dione (C28H28N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 440.53 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).
As a certified reference material (CRM), 4-(3-(4-(sec-Butyl)phenyl)-3-oxopropyl)-1,2-diphenylpyrazolidine-3,5-dione 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 | C28H28N2O3 |
| Molecular Weight | 440.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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.) | 1972 |
| Nitrogen Atoms | 2 |
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