4-(4-Chlorobenzenesulfonyl)butanoic acid CAS 29193-68-8
| CAS No. | 29193-68-8 |
| Molecular Formula | C10H11ClO4S |
| Molecular Weight | 262.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(4-Chlorobenzenesulfonyl)butanoic acid.
4-(4-Chlorobenzenesulfonyl)butanoic acid (CAS 29193-68-8) is a high-purity analytical reference standard with the molecular formula C10H11ClO4S and a molecular weight of 262.71 g/mol.
Structurally, 4-(4-Chlorobenzenesulfonyl)butanoic acid (C10H11ClO4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 262.71 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C10H11ClO4S |
| Molecular Weight | 262.71 g/mol |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorobenzenesulfonyl Standards
- 3-(4-Chlorobenzenesulfonyl)butyric Acid (CAS 175205-43-3)
- 2-(4-chlorobenzenesulfonyl)-2-methylpropanoic acid (CAS 28361-38-8)
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- 1-(4-Chlorobenzenesulfonyl)piperazine (CAS 16017-53-1)
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- 5-(4-Chlorobenzenesulfonyl)-1,2,3-thiadiazole (CAS 338397-15-2)
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Recommended Standards
- 4-(3-Ethylureido)benzene-1-sulfonyl chloride (CAS 677326-98-6)
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