23880-57-1 3-(Benzyloxy)-estra-1,3,5(10),16-tetraene 3-(Phenylmethoxy)-estra-1,3,5(10),16-tetraene 3-O-Benzyl Estratetraenol CAS 23880-57-1
| CAS No. | 23880-57-1 |
| Molecular Formula | C25H28O |
| Molecular Weight | 344.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 344.49 g/mol gives 23880-57-1 3-(Benzyloxy)-estra-1,3,5(10),16-tetraene 3-(Phenylmethoxy)-estra-1,3,5(10),16-tetraene 3-O-Benzyl Estratetraenol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
23880-57-1 3-(Benzyloxy)-estra-1,3,5(10),16-tetraene 3-(Phenylmethoxy)-estra-1,3,5(10),16-tetraene 3-O-Benzyl Estratetraenol (CAS 23880-57-1), molecular formula C25H28O and molecular weight 344.49 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 23880-57-1 3-(Benzyloxy)-estra-1,3,5(10),16-tetraene 3-(Phenylmethoxy)-estra-1,3,5(10),16-tetraene 3-O-Benzyl Estratetraenol (C25H28O) is characterized by a steroid core, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C25H28O |
| Molecular Weight | 344.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
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- 2-(Dimethylcarbamoyl)-4-hydroxybenzoic acid (CAS 1243431-46-0)
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