7-Allyl-6-(methoxymethoxy)-4,4,5,8-tetramethylchroman-2-one CAS 219938-57-5
| CAS No. | 219938-57-5 |
| Molecular Formula | C18H30O4 |
| Molecular Weight | 310.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
7-Allyl-6-(methoxymethoxy)-4,4,5,8-tetramethylchroman-2-one (CAS 219938-57-5) is a high-purity analytical reference standard with the molecular formula C18H30O4 and a molecular weight of 310.43 g/mol.
7-Allyl-6-(methoxymethoxy)-4,4,5,8-tetramethylchroman-2-one (C18H30O4) 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C18H30O4 |
| Molecular Weight | 310.43 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
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Recommended Standards
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- 6-(5-Bromothiophen-2-yl)-2-hydroxynicotinic acid (CAS 1204296-56-9)
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- trans-1-Benzyl-4-methyl-pyrrolidin-3-ol (CAS 143728-93-2)
- 4,4-Dimethyl-3-oxo-2-[(phenylamino)(sulfanyl)methylidene]pentanenitrile (CAS 1025530-23-7)
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- 2,4-Dimethylpyrimidine-5-carbohydrazide (CAS 88317-45-7)
- Semaglutide impurity 31 (CAS CATO-C4X-222631)
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