8-(2-Chloro-4,5-difluorophenyl)-8-oxooctanoic acid CAS 951891-55-7
| CAS No. | 951891-55-7 |
| Molecular Formula | C14H15ClF2O3 |
| Molecular Weight | 304.72 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.
8-(2-Chloro-4,5-difluorophenyl)-8-oxooctanoic acid (CAS 951891-55-7), molecular formula C14H15ClF2O3 and molecular weight 304.72 g/mol, is a CATO reference standard with documented purity and traceability.
8-(2-Chloro-4,5-difluorophenyl)-8-oxooctanoic acid (C14H15ClF2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 8-(2-Chloro-4,5-difluorophenyl)-8-oxooctanoic acid 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.
Physical & Chemical Properties
| Molecular Formula | C14H15ClF2O3 |
| Molecular Weight | 304.72 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 |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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 |
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Recommended Standards
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- methyl 2-isopropoxy-4-methoxybenzoate (CAS 117401-87-3)
- 3-(3-Bromo-4-ethoxy-phenylsulfamoyl)-benzoic acid (CAS 519152-84-2)
- 3-(4,6-Dichloro-1H-indol-3-yl)propan-1-amine hydrochloride (CAS 1956376-29-6)
- 3-Phenylpyridazin-4-amine (CAS 85156-25-8)
- 4-(Difluoromethyl)-6-hydroxy-3-methoxypicolinic acid (CAS 1807111-95-0)
- N-(4-(2-((4-Chlorophenyl)amino)-2-oxoethyl)thiazol-2-yl)furan-2-carboxamide (CAS 923178-53-4)
- Semaglutide Impurity 157 (x TFA Salt) (CAS CATO-C4X-2226157)
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