1-(4-Bromo-3-thienyl)ethanone CAS 35717-24-9
| CAS No. | 35717-24-9 |
| Molecular Formula | C6H5BrOS |
| Molecular Weight | 205.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-(4-Bromo-3-thienyl)ethanone meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
1-(4-Bromo-3-thienyl)ethanone (CAS 35717-24-9) is a high-purity analytical reference standard with the molecular formula C6H5BrOS and a molecular weight of 205.07 g/mol.
1-(4-Bromo-3-thienyl)ethanone (C6H5BrOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C6H5BrOS |
| Molecular Weight | 205.07 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
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- 1-(5-Bromo-3-thienyl)ethanone (CAS 59227-67-7)
- 3-Bromo-5-methylthiophene-2-carbaldehyde (CAS 36155-82-5)
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Recommended Standards
- 2-(5-Bromothiophen-3-yl)acetaldehyde (CAS 1857155-77-1)
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- 2-(5-Bromothiophen-2-yl)acetaldehyde (CAS 722536-02-9)
- 1-(2-Bromothiophen-3-yl)ethanone (CAS 137272-68-5)
- 6-Bromo-2-(piperidin-4-yl)-[1,2,4]triazolo[1,5-a]pyridine (CAS 1214875-44-1)
- 3-Bromoisoquinoline-1-carbaldehyde (CAS 116115-76-5)
- N'-(4,6-Dimethylpyrimidin-2-yl)-2-nitrobenzohydrazide (CAS 327104-46-1)
- 4-Chloro-2-(difluoromethoxy)benzo[d]oxazole (CAS 1807100-44-2)
- 2-Chloro-N-(2-(dimethylamino)cyclohexyl)acetamide (CAS 1353965-83-9)
- 4-[(2E)-3-[4-(Propan-2-yl)phenyl]prop-2-enoyl]phenyl 2,4,6-trimethylbenzene-1-sulfonate (CAS 331461-19-9)
- (R)-2-amino-3-(4-fluorophenyl)propan-1-ol (CAS 348619-91-0)
- 4-((3-(Trifluoromethyl)phenyl)sulfonyl)piperazine-1-carbaldehyde (CAS 866152-66-1)
- 1-Benzhydryl-4-(3-nitro-4-(p-tolylthio)benzyl)piperazine (CAS 477869-34-4)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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