5-(2-Chloro-4-fluorophenyl)-5-oxopentanoic acid CAS 951889-41-1
| CAS No. | 951889-41-1 |
| Molecular Formula | C11H10ClFO3 |
| Molecular Weight | 244.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(2-Chloro-4-fluorophenyl)-5-oxopentanoic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-(2-Chloro-4-fluorophenyl)-5-oxopentanoic acid (CAS 951889-41-1), molecular formula C11H10ClFO3 and molecular weight 244.65 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-(2-Chloro-4-fluorophenyl)-5-oxopentanoic acid (C11H10ClFO3) is characterized by a carboxylic acid group, 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. 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.
CATO manufactures 5-(2-Chloro-4-fluorophenyl)-5-oxopentanoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H10ClFO3 |
| Molecular Weight | 244.65 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
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- Methyl 4-(4-chloro-3-fluorophenyl)-4-oxobutanoate (CAS 1247500-98-6)
- Ethyl 3-(3-chloro-5-fluorophenyl)-3-oxopropanoate (CAS 1260763-41-4)
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Recommended Standards
- 4-Oxo-4H-chromene-3-sulfonyl chloride (CAS 91913-34-7)
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- 1'-Methyl-4'-phenyl-1'',2,2'',4-tetrahydrodispiro[1-benzopyran-3,3'-pyrrolidine-2',3''-indole]-2'',4-dione (CAS 1164512-30-4)
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- DL-Boc-pipecolic Acid (CAS 98303-20-9)
- N-[2-(3,5-Dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl]-N-ethyl-4-methoxybenzene-1-sulfonamide (CAS 1707586-32-0)
- Methyl (1R,4R,6S)-2-azabicyclo[2.2.1]Heptane-6-carboxylate (CAS 145375-03-7)
- N-(4-methylbenzyl)tetrahydro-2H-pyran-4-amine (CAS 1154887-64-5)
- 1-(4-Ethoxyphenyl)-3-(isopropylamino)pyrrolidine-2,5-dione (CAS 1095321-11-1)
- Benzyl-dimethyl-phenyl-silane (CAS 17938-20-4)
- Prop-1-ene-1,2-diylbis(triphenylsilane) (CAS 18919-82-9)
- C-Peptide 2 (rat) (CAS 41594-08-5)
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