1-(5-Bromoselenophen-2-yl)ethanone CAS 31432-41-4
| CAS No. | 31432-41-4 |
| Molecular Formula | C6H5BrOSe |
| Molecular Weight | 251.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(5-Bromoselenophen-2-yl)ethanone (CAS 31432-41-4) is a high-purity analytical reference standard with the molecular formula C6H5BrOSe and a molecular weight of 251.97 g/mol.
Based on its molecular formula C6H5BrOSe, 1-(5-Bromoselenophen-2-yl)ethanone contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 251.97 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C6H5BrOSe |
| Molecular Weight | 251.97 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Br-containing |
Related Bromoselenophen Standards
Recommended Standards
- (6-Borononaphthalen-2-yl)phosphonic acid (CAS 2520242-76-4)
- 2-Bromo-1-(selenophen-2-yl)ethanone (CAS 38025-30-8)
- (2,3,5,6-Tetrafluoro-4-propoxyphenyl)boronic acid (CAS 871125-71-2)
- 2-Iodo-4,4,4-trifluorobut-2-en-1-ol (CAS 674-35-1)
- 2-Ethylpiperidine-1-carboxamide (CAS 1094661-84-3)
- 1-(2,4-Dichloro-5-fluorophenyl)ethane-1-sulfonyl chloride (CAS 1247732-84-8)
- (2e)-3-[4-(dimethylamino)phenyl]prop-2-enenitrile (CAS 4854-85-7)
- 2-Chloro-5-iodo-4-methoxypyridine (CAS 1226878-98-3)
- 1-Chloro-2-(difluoromethoxy)-4-nitrobenzene (CAS 40319-62-8)
- Benzyl (3S,4S)-3-((tert-butoxycarbonyl)amino)-4-(hydroxymethyl)pyrrolidine-1-carboxylate (CAS 246510-69-0)
- 3-((4'-Methoxy-[1,1'-biphenyl])-4-sulfonamido)benzoic acid (CAS 885269-91-0)
- 1-Methyl-3-nitro-1h-pyrazole-5-carbonyl chloride (CAS 519165-02-7)
- Methyl 4-Hydroxypiperidine-3-carboxylate (CAS 959958-24-8)
- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com