1-Bromo-4-(cyclopropanesulfonyl)benzene CAS 648906-28-9
| CAS No. | 648906-28-9 |
| Molecular Formula | C9H9BrO2S |
| Molecular Weight | 261.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-Bromo-4-(cyclopropanesulfonyl)benzene (C9H9BrO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine 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 261.14 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1-Bromo-4-(cyclopropanesulfonyl)benzene (CAS 648906-28-9) is a high-purity analytical reference standard with the molecular formula C9H9BrO2S and a molecular weight of 261.14 g/mol.
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 | C9H9BrO2S |
| Molecular Weight | 261.14 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1985 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
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- 2-(3-Amino-1h-pyrazol-1-yl)butanoic acid (CAS 1340499-68-4)
- (s)-4-(1-Amino-2-hydroxyethyl)benzene-1,3-diol (CAS 1213959-90-0)
- 3-(4-Bromo-2-(3-ethoxy-3-oxopropyl)phenyl)acrylic acid (CAS 1807410-65-6)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
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