4-(Cyclopentyloxy)-2,3-difluorophenylboronic acid CAS 2096331-20-1
| CAS No. | 2096331-20-1 |
| Molecular Formula | C11H13BF2O3 |
| Molecular Weight | 242.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(Cyclopentyloxy)-2,3-difluorophenylboronic acid.
CATO supplies 4-(Cyclopentyloxy)-2,3-difluorophenylboronic acid (CAS 2096331-20-1), a certified reference material (molecular formula C11H13BF2O3, MW 242.03 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H13BF2O3, 4-(Cyclopentyloxy)-2,3-difluorophenylboronic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 242.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C11H13BF2O3 |
| Molecular Weight | 242.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1997 |
| Halogen Content | F-containing |
Related Cyclopentyloxy Standards
- 3-(Cyclopentyloxy)-2,4-difluorophenylboronic acid (CAS 1629971-64-7)
- 4-(Cyclopentyloxy)-3,5-difluorophenylboronic acid (CAS 2096331-93-8)
- 4-(Cyclopentyloxy)benzene-1-sulfonamide (CAS 1094770-58-7)
- 2-(Cyclopentyloxy)-1,3-difluoro-4-nitrobenzene (CAS 1881288-94-3)
- 1-(Cyclopentyloxy)-2,3-difluoro-4-nitrobenzene (CAS 1881332-23-5)
- (S)-2-(((Cyclopentyloxy)carbonyl)amino)-3,3-dimethylbutanoic acid (CAS 572924-00-6)
- 3-(cyclopentyloxy)-2-methylpropane-1-sulfonyl chloride (CAS 1343617-45-7)
- 2-(Cyclopentyloxy)-5-(trifluoromethyl)aniline (CAS 946719-33-1)
Recommended Standards
- 3-Bromopyrazolo[1,5-c]pyrimidine-5-carboxylic acid (CAS 2383351-78-6)
- 3-Bromopyrazolo[1,5-a]pyrimidine-5-carboxylic acid (CAS 619306-85-3)
- 4-Bromo-3-nitro-1H-pyrrolo[2,3-b]pyridine (CAS 943323-63-5)
- 3-Bromopyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 832740-60-0)
- 5-(2,4-dioxohexahydropyrimidin-1-yl)-2-thiomorpholino-benzoic acid (CAS 2703771-50-8)
- 2-Amino-2-cycloheptylacetic acid hydrochloride (CAS 232281-72-0)
- Phenyl (e)-(3s)-3-amino-5-methylhex-1-enyl sulfone hydrochloride (CAS 1421769-36-9)
- LaSOM 63, 98% (CAS 19492-61-6)
- Di-tert-butyl ((4S)-5-amino-3-hydroxypentane-1,4-diyl)dicarbamate (CAS 2748004-37-5)
- methyl 4-(2-bromoethynyl)benzoate (CAS 225928-10-9)
- Omarigliptin Impurity 16 (CAS 1819364-01-6)
- 1-(Aminomethyl)cyclopentanecarbonitrile hydrochloride (CAS 1909317-09-4)
- 6-(1h-1,2,4-Triazol-1-yl)nicotinimidamide (CAS 1017091-07-4)
- (Des-Thr7)-Glucagon trifluoroacetate salt (CAS 1802078-28-9)
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