5-(5,5-Dimethyl-1,3-dioxan-2-yl)-5-fluoro-2-methylvalerophenone CAS 898755-98-1
| CAS No. | 898755-98-1 |
| Molecular Formula | C18H25FO3 |
| Molecular Weight | 308.39 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.
5-(5,5-Dimethyl-1,3-dioxan-2-yl)-5-fluoro-2-methylvalerophenone (CAS 898755-98-1), molecular formula C18H25FO3 and molecular weight 308.39 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-(5,5-Dimethyl-1,3-dioxan-2-yl)-5-fluoro-2-methylvalerophenone (C18H25FO3) is characterized by a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C18H25FO3 |
| Molecular Weight | 308.39 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
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Recommended Standards
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- 2,2-Dimethyl-4-pentenal (CAS 5497-67-6)
- 3-(2-Nitrophenyl)-3-oxopropanenitrile (CAS 40017-83-2)
- 2-Azabicyclo[3.1.0]Hexane-3-carboxamide (CAS 1779416-42-0)
- 3-Cyclopropyl-4-nitro-1H-pyrazole (CAS 1249581-67-6)
- 2,6-Dimethylphenol (CAS 576-26-1)
- 4-(3-Methoxyphenyl)-1H-imidazol-2(3H)-one (CAS 936250-05-4)
- 2-Fluoro-5-(methylthio)phenylboronic acid pinacol ester (CAS 2121512-06-7)
- 2-Bromo-4-methoxy-[1,1'-biphenyl]-3-carboxylic acid (CAS 1215206-38-4)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
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