17β-acetyloxy-11,12-epoxyestr-4,9-diene-3-one CAS 145472-94-2
| CAS No. | 145472-94-2 |
| Molecular Formula | C20H26O4 |
| Molecular Weight | 330.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 17β-acetyloxy-11,12-epoxyestr-4,9-diene-3-one.
17β-acetyloxy-11,12-epoxyestr-4,9-diene-3-one (CAS 145472-94-2) is a high-purity analytical reference standard with the molecular formula C20H26O4 and a molecular weight of 330.42 g/mol.
Structurally, 17β-acetyloxy-11,12-epoxyestr-4,9-diene-3-one (C20H26O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 330.42 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures 17β-acetyloxy-11,12-epoxyestr-4,9-diene-3-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H26O4 |
| Molecular Weight | 330.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
Related acetyloxy Standards
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Recommended Standards
- AB-PINACA (CAS 1445752-09-9)
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- 3-(4-Acetylpiperazin-1-yl)benzonitrile (CAS 1500989-31-0)
- 3-Ethyl 4-methyl 2-hydrazinylthiophene-3,4-dicarboxylate (CAS 1964518-02-2)
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- 3-(Heptyloxy)azetidine (CAS 1274869-70-3)
- (Ser(PO?H?)3??·???)-Tau Peptide (379-408) trifluoroacetate salt (CAS 2022956-60-9)
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