3-(Cyclopentyloxy)-2,4-difluorophenylboronic acid CAS 1629971-64-7
| CAS No. | 1629971-64-7 |
| Molecular Formula | C11H13BF2O3 |
| Molecular Weight | 242.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(Cyclopentyloxy)-2,4-difluorophenylboronic acid (CAS 1629971-64-7) is a high-purity analytical reference standard with the molecular formula C11H13BF2O3 and a molecular weight of 242.03 g/mol.
Structurally, 3-(Cyclopentyloxy)-2,4-difluorophenylboronic acid (C11H13BF2O3) 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 242.03 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | 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.) | 1993 |
| Halogen Content | F-containing |
Related Cyclopentyloxy Standards
- 4-(Cyclopentyloxy)-2,3-difluorophenylboronic acid (CAS 2096331-20-1)
- 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
- 2-Bromo-[1,2,4]triazolo[1,5-a]pyridine-7-carboxylic Acid (CAS 1622993-12-7)
- 5-Bromo-7H-pyrrolo[2,3-d]pyrimidine-2-carboxylic acid (CAS 1638760-16-3)
- 2-Bromo-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic Acid (CAS 1422772-78-8)
- 5-Bromo-7H-pyrrolo[2,3-d]pyrimidine-4-carboxylic acid (CAS 1638763-74-2)
- tert-Butyl 5-(benzyloxy)-3-methyl-1H-pyrazolo[3,4-b]pyridine-1-carboxylate (CAS 864775-97-3)
- 1,2-Diheptadecanoyl-rac-glycerol (CAS 98896-81-2)
- Methyl 2-(dimethylamino)-5-methoxyoxazole-4-carboxylate (CAS 918826-86-5)
- (Gly21)-Amyloid β-Protein (1-40) trifluoroacetate salt (CAS 154362-03-5)
- Z-Thr(tBu)-OH · DCHA (CAS 16966-07-7)
- 2-bromo-1-cyclohexylpropan-1-one (CAS 101714-60-7)
- 2-(2-ethylimidazo[2,1-b][1,3,4]thiadiazol-6-yl)ethanamine,2HCl (CAS 1018663-66-5)
- 2-Amino-6-methoxybenzonitrile (CAS 1591-37-3)
- 2-(4-(Isopropylthio)phenyl)-N-((1-(thiophen-2-yl)cyclopropyl)methyl)acetamide (CAS 1210882-72-6)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
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