(3-Methoxy-2-(methoxycarbonyl)phenyl)boronic acid CAS 1256355-41-5
| CAS No. | 1256355-41-5 |
| Molecular Formula | C9H11BO5 |
| Molecular Weight | 209.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (3-Methoxy-2-(methoxycarbonyl)phenyl)boronic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(3-Methoxy-2-(methoxycarbonyl)phenyl)boronic acid (CAS 1256355-41-5) is a high-purity analytical reference standard with the molecular formula C9H11BO5 and a molecular weight of 209.99 g/mol.
The molecular framework of (3-Methoxy-2-(methoxycarbonyl)phenyl)boronic acid (C9H11BO5) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, 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).
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 | C9H11BO5 |
| Molecular Weight | 209.99 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related Methoxy Standards
- 3-Methoxy-5-(methoxycarbonyl)phenylboronic Acid (CAS 1048330-11-5)
- (4-Methoxy-3-(methoxycarbonyl)phenyl)boronic acid (CAS 1071958-96-7)
- (4-Methoxy-2-(methoxycarbonyl)phenyl)boronic acid (CAS 1256355-40-4)
- 3-(2-Methoxy-2-oxoethoxy)phenylboronic acid (CAS 1256355-55-1)
- (2-Methoxy-3-(methoxycarbonyl)phenyl)boronic acid (CAS 1332637-14-5)
- (2-Methoxy-4-(methoxycarbonyl)phenyl)boronic acid (CAS 849758-14-1)
- (2-Methoxy-5-(methoxycarbonyl)phenyl)boronic acid (CAS 221006-63-9)
- (4-(2-Methoxy-2-oxoethoxy)phenyl)boronic acid (CAS 957063-00-2)
Recommended Standards
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