(4-Methyl-3-(pyrrolidin-1-ylsulfonyl)phenyl)boronic acid CAS 1704068-81-4
| CAS No. | 1704068-81-4 |
| Molecular Formula | C11H16BNO4S |
| Molecular Weight | 269.13 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-Methyl-3-(pyrrolidin-1-ylsulfonyl)phenyl)boronic acid (CAS 1704068-81-4), molecular formula C11H16BNO4S and molecular weight 269.13 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H16BNO4S, (4-Methyl-3-(pyrrolidin-1-ylsulfonyl)phenyl)boronic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 269.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C11H16BNO4S |
| Molecular Weight | 269.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- (2-Methyl-4-(pyrrolidin-1-ylsulfonyl)phenyl)boronic acid (CAS 1217501-51-3)
- (2-Methyl-5-(pyrrolidin-1-ylsulfonyl)phenyl)boronic acid (CAS 871333-01-6)
- 1098391-16-2 4-[(Pyrrolidin-1-ylsulfonyl)methyl]benzoic acid MFCD11549006 (CAS 1098391-16-2)
- 2-(4-(Pyrrolidin-1-ylsulfonyl)phenyl)acetic acid (CAS 346611-59-4)
- 4-(pyrrolidin-1-ylsulfonyl)benzohydrazide (CAS 735322-66-4)
- Methyl 4-(pyrrolidin-1-ylsulfonyl)benzoate (CAS 333787-82-9)
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Recommended Standards
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- 4,5-Dichloro-2-(4-methylbenzyl)pyridazin-3(2H)-one (CAS 173843-86-2)
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