2-(5-Bromo-2-methylbenzoyl)-5-(4-fluorophenyl)thiophene CAS 1132832-75-7
| CAS No. | 1132832-75-7 |
| Molecular Formula | C18H12BrFOS |
| Molecular Weight | 375.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(5-Bromo-2-methylbenzoyl)-5-(4-fluorophenyl)thiophene (CAS 1132832-75-7), molecular formula C18H12BrFOS and molecular weight 375.25 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(5-Bromo-2-methylbenzoyl)-5-(4-fluorophenyl)thiophene (C18H12BrFOS) contains a steroid core, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 375.25 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C18H12BrFOS |
| Molecular Weight | 375.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F/Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 5,7-Dichloro-N-(m-tolyl)thiazolo[4,5-d]pyrimidine-2-sulfonamide (CAS 1000575-59-6)
- 2-[(2,6-Dichlorophenyl)sulfanyl]-4-(4-fluorophenyl)pyridine-3-carbonitrile (CAS 478245-91-9)
- 2,7-Dimethyl-1,2,3,4-tetrahydroquinoline (CAS 42835-92-7)
- tert-Butyl (4-chloro-6-formylpyridin-2-yl)carbamate (CAS 1060801-13-9)
- n-(3,4-Dimethylbenzyl)butan-1-amine (CAS 1152659-55-6)
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- (R)-2-((tert-Butoxycarbonyl)amino)-2-(o-tolyl)acetic acid (CAS 1228565-65-8)
- Methyl 5-amino-1-(3-nitrophenyl)-1H-pyrazole-4-carboxylate (CAS 1264047-13-3)
- (4-(Bromomethyl)phenyl)methanamine (CAS 769057-30-9)
- 2978-58-7 3-Butyn-2-amine, 2-methyl- 1,1-Dimethylprop-3-ynylamine 2-Propynylamine, 1,1-dimethyl- (6CI,7CI,8CI) 30-D-11 3-Amino-3-methyl-1-butyne 1,1-Dimethylpropargylamine 1,1-Dimethylpropynylamine EINECS 221-029-7 2-Methyl-3-butyn-2-amine EC 221-029-7 (CAS 2978-58-7)
- 2-Bromo-6-fluorobenzamide (CAS 107485-63-2)
- Tirzepatide Impurity 14 (CAS CATO-C4X-324014)
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