3-Fluoro-5-(methoxycarbonyl)-2-methylphenylboronic acid CAS 911370-71-3
| CAS No. | 911370-71-3 |
| Molecular Formula | C9H10BFO4 |
| Molecular Weight | 211.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Fluoro-5-(methoxycarbonyl)-2-methylphenylboronic acid (CAS 911370-71-3) is a high-purity analytical reference standard with the molecular formula C9H10BFO4 and a molecular weight of 211.98 g/mol.
Structurally, 3-Fluoro-5-(methoxycarbonyl)-2-methylphenylboronic acid (C9H10BFO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. 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 211.98 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C9H10BFO4 |
| Molecular Weight | 211.98 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
Related Fluoro Standards
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- 1-fluoro-3-iodobicyclo[1.1.1]pentane (CAS 146038-59-7)
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- (5-Fluoro-2-(isopropoxymethyl)phenyl)boronic acid (CAS 1333392-80-5)
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- 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(trifluoromethyl)-1H-pyrazole (CAS 1046831-98-4)
- N-Methoxy-N-methyl-2-(m-tolyl)acetamide (CAS 267884-97-9)
- (E)-3-(2-(2-((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)amino)-2-oxoethoxy)phenyl)acrylic acid (CAS 937999-65-0)
- 6-Iodoimidazo[1,2-a]pyrazine (CAS 1208082-27-2)
- Methyl (1R,5S)-2-azabicyclo[3.1.0]Hexane-1-carboxylate (CAS 145631-97-6)
- Semaglutide impurity 75 (CAS CATO-C4X-222675)
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