[4-(Cyclopentanesulfonyl)phenyl]boronic acid CAS 1175560-94-7
| CAS No. | 1175560-94-7 |
| Molecular Formula | C11H15BO4S |
| Molecular Weight | 254.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
[4-(Cyclopentanesulfonyl)phenyl]boronic acid (CAS 1175560-94-7) is a high-purity analytical reference standard with the molecular formula C11H15BO4S and a molecular weight of 254.11 g/mol.
The molecular framework of [4-(Cyclopentanesulfonyl)phenyl]boronic acid (C11H15BO4S) is characterized by a sulfone group, 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).
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 | C11H15BO4S |
| Molecular Weight | 254.11 g/mol |
| 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.) | 1989 |
| Sulfur Atoms | 1 |
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- 1',6-Dimethylspiro[indoline-3,4'-piperidine] (CAS 1186499-80-8)
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