3-Benzyloxy-2-methoxyphenylboronic acid pinacol ester CAS 2121514-22-3
| CAS No. | 2121514-22-3 |
| Molecular Formula | C20H25BO4 |
| Molecular Weight | 340.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Benzyloxy-2-methoxyphenylboronic acid pinacol ester (C20H25BO4) contains a flavonoid 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.
3-Benzyloxy-2-methoxyphenylboronic acid pinacol ester (CAS 2121514-22-3), molecular formula C20H25BO4 and molecular weight 340.22 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C20H25BO4 |
| Molecular Weight | 340.22 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) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
Related Benzyloxy Standards
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- N-(5-(2,5-Dimethoxyphenyl)-1,3,4-oxadiazol-2-yl)-1-methyl-1H-pyrazole-5-carboxamide (CAS 1170576-50-7)
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- 2-Bromo-N-(5-chloro-2-methylphenyl)-2-methylpropanamide (CAS 1365963-36-5)
- benzyl 2,4-dioxo-1,8-diazaspiro[4.5]decane-8-carboxylate (CAS 2029246-72-6)
- 2-(4-Methylphenylsulfonamido)-N-(1,2,4-triazin-3-yl)acetamide (CAS 138598-40-0)
- methyl 5-fluoro-2,3-dihydroxy-benzoate (CAS 1258002-30-0)
- 2-((3,4,4-Trifluorobut-3-en-1-yl)thio)quinazolin-4(3H)-one (CAS 339020-22-3)
- 2,6-Dimethyl-4-piperidin-4-yl-morpholinehydrochloride (CAS 436099-87-5)
- Protein Kinase C (alpha) Peptide (CAS 159939-84-1)
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