(17β)-3,17-Bis[(1-oxopentyl)oxy]-estra-1,3,5(10)-trien-6-one CAS 1350468-78-8
| CAS No. | 1350468-78-8 |
| Molecular Formula | C28H38O5 |
| Molecular Weight | 454.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(17β)-3,17-Bis[(1-oxopentyl)oxy]-estra-1,3,5(10)-trien-6-one (CAS 1350468-78-8) is a high-purity analytical reference standard with the molecular formula C28H38O5 and a molecular weight of 454.60 g/mol.
Structurally, (17β)-3,17-Bis[(1-oxopentyl)oxy]-estra-1,3,5(10)-trien-6-one (C28H38O5) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 454.60 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).
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 | C28H38O5 |
| Molecular Weight | 454.60 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
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- 3,6-Dichloro-5-(trifluoromethyl)pyridin-2-amine (CAS 79456-29-4)
- Methyl 6,6-dimethyl-4-oxo-3-(propylthio)-4,5,6,7-tetrahydrobenzo[c]thiophene-1-carboxylate (CAS 175202-42-3)
- 2-({5-nitro-6-[phenyl(propan-2-yl)amino]pyrimidin-4-yl}amino)-3-phenylpropanoic acid (CAS 1008064-69-4)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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