4-(2-Methyl-propane-1-sulfonyl)benzoic acid CAS 855196-94-0
| CAS No. | 855196-94-0 |
| Molecular Formula | C11H14O4S |
| Molecular Weight | 242.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(2-Methyl-propane-1-sulfonyl)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).
CATO supplies 4-(2-Methyl-propane-1-sulfonyl)benzoic acid (CAS 855196-94-0), a certified reference material (molecular formula C11H14O4S, MW 242.29 g/mol) for analytical method development and quality control.
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 | 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.) | 1987 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 4-Methyl-3-(propane-2-sulfonyl)benzoic acid (CAS 1152497-12-5)
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Recommended Standards
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- 15-Keto Prostaglandin E0 (CAS 5094-14-4)
- 2-Amino-3-(2-fluoro-4-(trifluoromethoxy)phenyl)propanoic acid (CAS 1391008-15-3)
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