| CAS No. | 900186-73-4 |
| Molecular Formula | C26H26N2O5 |
| Molecular Weight | 446.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
(E)-(R,Z)-5-(Diphenylamino)-5-oxopent-3-en-2-yl 3-(5-nitrocyclohex-1-en-1-yl)acrylate (CAS 900186-73-4) is a high-purity analytical reference standard with the molecular formula C26H26N2O5 and a molecular weight of 446.50 g/mol.
The molecular framework of (E)-(R,Z)-5-(Diphenylamino)-5-oxopent-3-en-2-yl 3-(5-nitrocyclohex-1-en-1-yl)acrylate (C26H26N2O5) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
| Molecular Formula | C26H26N2O5 |
| Molecular Weight | 446.50 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |