1-Chloro-3-(cyclopentyloxy)-2,4-difluorobenzene CAS 1881295-23-3
| CAS No. | 1881295-23-3 |
| Molecular Formula | C11H11ClF2O |
| Molecular Weight | 232.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 1-Chloro-3-(cyclopentyloxy)-2,4-difluorobenzene (C11H11ClF2O) is characterized by a hydroxyl group, an ether linkage, fluorine/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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
1-Chloro-3-(cyclopentyloxy)-2,4-difluorobenzene (CAS 1881295-23-3), molecular formula C11H11ClF2O and molecular weight 232.65 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C11H11ClF2O |
| Molecular Weight | 232.65 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.) | 1995 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- 2-Chloro-2,2-difluoro-1-(2,4,5-trimethylphenyl)ethan-1-one (CAS 1352226-10-8)
- 1-Chloro-4-(cyclopentyloxy)-2,3-difluorobenzene (CAS 1881330-50-2)
- 5-Chloro-1-(3,4-difluorophenyl)pentan-1-one (CAS 898761-51-8)
- 5-Chloro-3-phenylbenzoic acid (CAS 1082283-43-9)
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Recommended Standards
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- 1-(4-Chloro-3-fluorophenyl)-2-methylpropan-2-ol (CAS 1379314-91-6)
- [(2-Methylphenyl)methyl](2-methylpropyl)amine (CAS 893589-84-9)
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