7-(3,5-Difluorophenyl)-7-oxoheptanoic acid CAS 898765-83-8
| CAS No. | 898765-83-8 |
| Molecular Formula | C13H14F2O3 |
| Molecular Weight | 256.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 256.25 g/mol gives 7-(3,5-Difluorophenyl)-7-oxoheptanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7-(3,5-Difluorophenyl)-7-oxoheptanoic acid (CAS 898765-83-8) is a high-purity analytical reference standard with the molecular formula C13H14F2O3 and a molecular weight of 256.25 g/mol.
The molecular framework of 7-(3,5-Difluorophenyl)-7-oxoheptanoic acid (C13H14F2O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine 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 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 | C13H14F2O3 |
| Molecular Weight | 256.25 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 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-containing |
Related Difluorophenyl Standards
- ethyl 3-(3,5-difluorophenyl)-2,2-dimethyl-3-oxopropanoate (CAS 1283953-42-3)
- Methyl 5-(3,4-difluorophenyl)-3-methyl-5-oxopentanoate (CAS 1443331-27-8)
- Methyl 5-(3,5-difluorophenyl)-3-methyl-5-oxopentanoate (CAS 1443350-58-0)
- 1-(2,3-Difluorophenyl)-3-(1,3-dioxan-2-yl)propan-1-one (CAS 884504-24-9)
- 1-(2,4-Difluorophenyl)-3-(1,3-dioxan-2-yl)propan-1-one (CAS 884504-25-0)
- 1-(2,6-Difluorophenyl)-3-(1,3-dioxan-2-yl)propan-1-one (CAS 884504-27-2)
- 7-(2,3-Difluorophenyl)-7-oxoheptanoic acid (CAS 898766-19-3)
- 7-(2,4-Difluorophenyl)-7-oxoheptanoic acid (CAS 898766-28-4)
Recommended Standards
- 7-(3,4-Difluorophenyl)-7-oxoheptanoic acid (CAS 898765-79-2)
- 7,8-Dihydroxy-2-phenylchroman-4-one (CAS 51876-18-7)
- 7-(2,6-Difluorophenyl)-7-oxoheptanoic acid (CAS 898766-49-9)
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