5-(5,5-Dimethyl-1,3-dioxan-2-yl)-2-ethoxyvalerophenone CAS 898755-78-7
| CAS No. | 898755-78-7 |
| Molecular Formula | C19H28O4 |
| Molecular Weight | 320.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 320.42 g/mol gives 5-(5,5-Dimethyl-1,3-dioxan-2-yl)-2-ethoxyvalerophenone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-(5,5-Dimethyl-1,3-dioxan-2-yl)-2-ethoxyvalerophenone (CAS 898755-78-7), molecular formula C19H28O4 and molecular weight 320.42 g/mol, is a CATO reference standard with documented purity and traceability.
5-(5,5-Dimethyl-1,3-dioxan-2-yl)-2-ethoxyvalerophenone (C19H28O4) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C19H28O4 |
| Molecular Weight | 320.42 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
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Recommended Standards
- 4,4'-(Adamantane-2,2-diyl)diphenol (CAS 52211-74-2)
- 6-(1-((2-(Trimethylsilyl)ethoxy)methyl)-1H-pyrazol-4-yl)pyridazine-3-carboxylic acid (CAS 2613436-80-7)
- 4,4'-(Adamantane-1,3-diyl)diphenol (CAS 37677-93-3)
- 6-(4-(Heptyloxy)phenyl)-6-oxohexanoic acid (CAS 898792-21-7)
- 5-Bromo-3-iodo-6-methylpyridin-2-ol (CAS 1949816-03-8)
- 1-Cyclopentyl-3-nitro-1h-pyrazole (CAS 1170953-36-2)
- 1-(2-Bromo-6-nitrophenyl)ethanol (CAS 1934706-71-4)
- 2-Hydrazono-2,3-dihydro-1H-naphtho[2,3-d]imidazole (CAS 59565-65-0)
- 2-Methyl-4H-chromen-4-one (CAS 5751-48-4)
- (2R,3aS,5R,7aS)-7a-Methyl-2-((perfluorophenyl)thio)-5-(prop-1-en-2-yl)hexahydrobenzo[d][1,3,2]oxathiaphosphole 2-sulfide (CAS 2269472-45-7)
- 4-Amino-7H-pyrrolo[2,3-d]pyrimidine-2-sulfinic acid (CAS 1027082-25-2)
- 1-(3,5-Dimethylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 950259-04-8)
- Ethyl 2-(thietan-3-yl)acetate (CAS 1637751-58-6)
- Peptide 6A (H-6905.0005) (CAS 73549-32-3)
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