(7-Ethyl-3,3-dimethyl-2,3-dihydrobenzofuran-5-yl)boronic acid CAS 623175-86-0
| CAS No. | 623175-86-0 |
| Molecular Formula | C12H17BO3 |
| Molecular Weight | 220.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (7-Ethyl-3,3-dimethyl-2,3-dihydrobenzofuran-5-yl)boronic acid (CAS 623175-86-0), a certified reference material (molecular formula C12H17BO3, MW 220.07 g/mol) for analytical method development and quality control.
The molecular framework of (7-Ethyl-3,3-dimethyl-2,3-dihydrobenzofuran-5-yl)boronic acid (C12H17BO3) 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 its high hydrophobicity (logP), 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 | C12H17BO3 |
| Molecular Weight | 220.07 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 chloroform, dichloromethane, ethyl acetate, 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.) | 1985 |
Related Ethyl Standards
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Recommended Standards
- (2-Ethoxy-5,6,7,8-tetrahydronaphthalen-1-yl)boronic acid (CAS 622834-95-1)
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- 2-bromo-5H,6H,7H-pyrrolo[2,3-b]pyrazin-6-one (CAS 1823331-15-2)
- 2-(2-(Bromoethynyl)phenyl)acetonitrile (CAS 2715198-70-0)
- {2-[(dimethylamino)methyl]phenyl}methanol (CAS 63321-79-9)
- 5-(Difluoromethyl)-4-nitro-3-(trifluoromethyl)picolinonitrile (CAS 1805187-69-2)
- Methyl 7-bromo-3-hydroxy-1H-indole-2-carboxylate (CAS 153501-51-0)
- 2-Isopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazine (CAS 2223040-81-9)
- Ethyl 5-acetyl-4-methyl-2-(2-(p-tolyloxy)acetamido)thiophene-3-carboxylate (CAS 446833-36-9)
- 2-Chloro-3-cyclopropoxy-4-nitropyridine (CAS 1243455-00-6)
- (4R,5S)-rel-5-fluoro-3,3-dimethylpiperidin-4-ol (CAS 1612175-97-9)
- Rasagiline impurity 55 (CAS CATO-C4X-191355)
- tert-Butyl 4-(5-amino-2-oxo-1,3-benzoxazol-3(2H)-yl)piperidine-1-carboxylate (CAS 1142202-16-1)
- Semaglutide impurity 67 (CAS CATO-C4X-222667)
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