2-(tert-Butylsulfonyl)benzoic acid CAS 5293-55-0
| CAS No. | 5293-55-0 |
| Molecular Formula | C11H14O4S |
| Molecular Weight | 242.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(tert-Butylsulfonyl)benzoic acid (CAS 5293-55-0) is a high-purity analytical reference standard with the molecular formula C11H14O4S and a molecular weight of 242.29 g/mol.
2-(tert-Butylsulfonyl)benzoic acid (C11H14O4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C11H14O4S |
| Molecular Weight | 242.29 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-(5-Cyanobenzofuran-2-yl)ethyl methanesulfonate (CAS 919088-05-4)
- 2-Bromo-1-(4-(tert-butyl)phenyl)propan-1-one (CAS 77565-38-9)
- 2-(4-Fluorophenyl)-N-(2-methoxybenzyl)ethanamine (CAS 353779-46-1)
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