5-Methoxy-3-pyridineboronic Acid Pinacol Ester CAS 445264-60-8
| CAS No. | 445264-60-8 |
| Molecular Formula | C12H18BNO3 |
| Molecular Weight | 235.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-Methoxy-3-pyridineboronic Acid Pinacol Ester (C12H18BNO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 235.09 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
5-Methoxy-3-pyridineboronic Acid Pinacol Ester (CAS 445264-60-8) is a high-purity analytical reference standard with the molecular formula C12H18BNO3 and a molecular weight of 235.09 g/mol.
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 | C12H18BNO3 |
| Molecular Weight | 235.09 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
- 3-Methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1256358-87-8)
- 4-Methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1256358-88-9)
- 5-Methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1309601-77-1)
- 4-Methoxy-2-(pyrrolidin-1-ylmethyl)phenylboronic acid (CAS 1451392-11-2)
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- (2-Methoxy-5-(piperidin-3-yl)phenyl)boronic acid (CAS 2225152-06-5)
- (2-Methoxy-5-(piperidin-4-yl)phenyl)boronic acid (CAS 2225173-44-2)
- (3-Methoxy-5-(piperidin-3-yl)phenyl)boronic acid (CAS 2225152-21-4)
Recommended Standards
- 5-(Hydroxymethyl)pyridine-3-boronic Acid Pinacol Ester (CAS 877149-81-0)
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- 4-Methoxypyridine-3-boronic Acid Pinacol Ester (CAS 758699-74-0)
- 7-bromo-4-fluoro-indan-1-one (CAS 881189-73-7)
- 5-Chloro-3-phenyl-1H-pyrazole-4-carboxylic acid (CAS 1383456-68-5)
- 2-Chloro-4-nitropyrimidin-5-amine (CAS 618397-67-4)
- N-Boc-O-2-propyn-1-yl-L-tyrosine (CAS 340732-79-8)
- 2-Bromo-4-formylphenyl 4-chlorobenzoate (CAS 944681-76-9)
- Methyl 5-(chlorosulfonyl)-1-naphthoate (CAS 141952-09-2)
- 5-(3,4-Dihydro-2h-1,5-benzodioxepin-7-yl)-5-methylimidazolidine-2,4-dione (CAS 956437-59-5)
- 2-Hydroxy-6-methoxybenzonitrile (CAS 71590-96-0)
- (4-Bromo-2,3-dihydrobenzofuran-2-yl)methanol (CAS 312608-50-7)
- 3-Bromo-7-fluoro-2,3-dihydropyrrolo[2,1-b]quinazolin-9(1h)-one (CAS 642491-90-5)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
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