1-[5-(4-bromophenyl)thiophen-2-yl]ethan-1-one CAS 51335-89-8
| CAS No. | 51335-89-8 |
| Molecular Formula | C12H9BrOS |
| Molecular Weight | 281.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-[5-(4-bromophenyl)thiophen-2-yl]ethan-1-one 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-[5-(4-bromophenyl)thiophen-2-yl]ethan-1-one (CAS 51335-89-8), molecular formula C12H9BrOS and molecular weight 281.17 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 1-[5-(4-bromophenyl)thiophen-2-yl]ethan-1-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 281.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H9BrOS |
| Molecular Weight | 281.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related bromophenyl Standards
- 1-[5-(2-bromophenyl)thiophen-2-yl]ethan-1-one (CAS 1049872-66-3)
- 2-{[(2-bromophenyl)methyl]sulfanyl}pyrimidine (CAS 1249407-58-6)
- 2-((4-Bromophenyl)thio)pyridin-3-amine (CAS 353277-66-4)
- 2-{[(3-bromophenyl)methyl]sulfanyl}pyrimidine (CAS 884149-78-4)
- 4-(4-Bromophenyl)-2-(methylthio)pyrimidine (CAS 778646-96-1)
- 6-((4-Bromophenyl)thio)pyridin-3-amine (CAS 353277-60-8)
- 6-(4-Bromophenyl)-2,3-dihydroimidazo[2,1-b]thiazole (CAS 35181-52-3)
- 3-(4-Bromophenyl)-1-cyclopropylpiperazine (CAS 1248907-83-6)
Recommended Standards
- 1-[4-(5-bromothiophen-2-yl)phenyl]ethan-1-one (CAS 929972-12-3)
- 1-[4-(3-Bromothien-2-yl)phenyl]ethanone (CAS 937796-01-5)
- 1-(5-bromothiophen-2-yl)-2-phenylethan-1-one (CAS 56824-81-8)
- 2-Bromo-1-(4-(thiophen-3-yl)phenyl)ethan-1-one (CAS 879896-53-4)
- 7-Oxo-3,7-dihydrotetrazolo[1,5-a]pyrimidine-5-carboxylic acid (CAS 21139-79-7)
- 1638621-94-9 KS-000027EJ methyl (2S)-3-(4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl)-2-acetamidopropanoate (CAS 1638621-94-9)
- Methyl 2-bromo-3-cyanoisonicotinate (CAS 1805522-01-3)
- 2-((Ethyl(2-hydroxyethyl)amino)methyl)benzonitrile (CAS 1176738-33-2)
- 4-(trifluoromethyl)thiophene-3-carbaldehyde (CAS 1363512-23-5)
- 1-Ethyl-1H-pyrazole-3-sulfonyl chloride (CAS 1354706-44-7)
- 3-Isopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2096338-99-5)
- 5-Cyclopropyl-2-fluorophenol (CAS 2379918-44-0)
- 6-(4-Methoxy-phenyl)-1-methyl-2-oxo-1,2-dihydro-pyrimidine-4-carboxylic acid (CAS 951958-27-3)
- Immunstimulating Peptide, human (CAS 94773-24-7)
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