5-Chloro-1-(4-chlorophenyl)-1-oxopentane CAS 945-97-1
| CAS No. | 945-97-1 |
| Molecular Formula | C11H12Cl2O |
| Molecular Weight | 231.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-Chloro-1-(4-chlorophenyl)-1-oxopentane (CAS 945-97-1), molecular formula C11H12Cl2O and molecular weight 231.12 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Chloro-1-(4-chlorophenyl)-1-oxopentane (C11H12Cl2O) is characterized by a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C11H12Cl2O |
| Molecular Weight | 231.12 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Chloro Standards
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Recommended Standards
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- 2-Bromo-4-(difluoromethyl)-3-fluoro-6-methylpyridine (CAS 1804494-39-0)
- 1-(2-Methoxybenzyl)-1h-imidazole-4-carboxylic acid (CAS 1369013-86-4)
- 2-(4-(1H-Benzo[d]imidazol-2-yl)piperidin-1-yl)-N-phenylacetamide (CAS 887214-41-7)
- 1-(2-(Allyloxy)-3-chloropropoxy)butane (CAS 90499-25-5)
- Semaglutide Impurity 128 (CAS 2490269-78-6)
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