5-((3-Bromophenyl)sulfonyl)pentanoic acid CAS 1489031-82-4
| CAS No. | 1489031-82-4 |
| Molecular Formula | C11H13BrO4S |
| Molecular Weight | 321.19 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.
5-((3-Bromophenyl)sulfonyl)pentanoic acid (CAS 1489031-82-4) is a high-purity analytical reference standard with the molecular formula C11H13BrO4S and a molecular weight of 321.19 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 5-((3-Bromophenyl)sulfonyl)pentanoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 321.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C11H13BrO4S |
| Molecular Weight | 321.19 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; 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.) | 1992 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- tert-Butyl (5-bromo-3-carbamoylthiophen-2-yl)carbamate (CAS 1371599-17-5)
- N,N-Diethyl-2-fluoro-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide (CAS 1509932-36-8)
- 3-Bromo-5-(piperazin-1-ylsulfonyl)pyridin-4-amine (CAS 1352517-41-9)
- Methyl 4-(4-bromobenzenesulfonyl)butanoate (CAS 163496-41-1)
- 2-Amino-1,2,3,4-tetrahydronaphthalene-1-carboxylic acid (CAS 103796-56-1)
- 6-Chloro-1-(cyclopropylmethyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 1710202-70-2)
- [2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]-4-morpholinylphosphinic Acid (CAS 308367-90-0)
- 4-(4H-1,2,4-triazol-4-yl)butan-1-amine hydrochloride (CAS 1354950-97-2)
- Desmopressin (CAS 16789-98-3)
- tert-Butyl 3-pyrrolidin-3-ylazetidine-1-carboxylate (CAS 1251019-03-0)
- 3,4-Dimethyl-N-(4-(thiophen-2-yl)thiazol-2-yl)benzamide (CAS 392246-66-1)
- 1H-thieno[3,2-c]pyrazole-5-carboxylic acid (CAS 1313726-01-0)
- 2-Chloro-5-isobutyl-1,3,4-thiadiazole (CAS 99420-56-1)
- Semaglutide impurity 200 (CAS CATO-C4X-2226200)
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