4-(2,4-Dichlorophenoxy)-N-(4-fluorophenyl)butanamide CAS 303091-85-2
| CAS No. | 303091-85-2 |
| Molecular Formula | C16H14Cl2FNO2 |
| Molecular Weight | 342.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(2,4-Dichlorophenoxy)-N-(4-fluorophenyl)butanamide.
4-(2,4-Dichlorophenoxy)-N-(4-fluorophenyl)butanamide (CAS 303091-85-2) is a high-purity analytical reference standard with the molecular formula C16H14Cl2FNO2 and a molecular weight of 342.19 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, 4-(2,4-Dichlorophenoxy)-N-(4-fluorophenyl)butanamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 342.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C16H14Cl2FNO2 |
| Molecular Weight | 342.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichlorophenoxy Standards
- Methyl 4-(2,4-dichlorophenoxy)-3-nitrobenzoate (CAS 478246-38-7)
- 2-(3,4-Dichlorophenoxy)-5-phenylnicotinonitrile (CAS 338964-12-8)
- 2-(3,4-Dichlorophenoxy)-6-phenylnicotinonitrile (CAS 252058-98-3)
- 3-((2,3-Dichlorophenoxy)methyl)-4-methoxybenzohydrazide (CAS 438218-58-7)
- 2-(2,4-Dichlorophenoxy)-N'-(3-oxocyclohex-1-en-1-yl)propanehydrazide (CAS 1024134-18-6)
- (5-(2,4-Dichlorophenoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methanol (CAS 1006491-86-6)
- N-[2-(2,4-Dichlorophenoxy)propyl]-3-ethoxyaniline (CAS 1040685-09-3)
- 2-(2,4-Dichlorophenoxy)-N-(4-methoxyphenyl)propanamide (CAS 284488-00-2)
Recommended Standards
- 3-Methyl-2-p-tolylquinoline-4-carboxylic acid (CAS 330834-94-1)
- 4-(3-Bromophenyl)-3,4-dihydrobenzo[4,5]imidazo[1,2-a][1,3,5]triazin-2(1h)-imine (CAS 326021-81-2)
- 3-Bromo-6-((4-hydroxypiperidin-4-yl)methyl)-2-methyl-2,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (CAS 2196245-70-0)
- 4-(4-Bromophenyl)-2-morpholino-4-oxobutanoic acid (CAS 35046-27-6)
- N-(6-Methylpyridin-3-yl)acetamide (CAS 29958-15-4)
- 4,4,5,5-Tetramethyl-2-(2-(trifluoromethyl)thiophen-3-yl)-1,3,2-dioxaborolane (CAS 2246611-07-2)
- (2S,3R,4S)-3-(Benzyloxy)-2-methyl-3,4-dihydro-2H-pyran-4-ol (CAS 117249-16-8)
- 2,5-Bis(propan-2-yl)furan-3-carboxylic acid (CAS 1542964-03-3)
- tert-butyl 4-(Azetidin-3-ylmethyl)piperidine-1-carboxylate hydrochloride (CAS 2580216-69-7)
- Methyl 2-bromo-3,4-dihydroxy-5-methoxybenzoate (CAS 123685-25-6)
- 4-Bromo-5-fluoro-3-(trifluoromethoxy)picolinonitrile (CAS 1806011-95-9)
- p-Tolylhydrazine xhydrochloride (CAS 35467-65-3)
- 3-(4-Bromophenyl)-5-phenyl-1,2,4-oxadiazole (CAS 65004-19-5)
- Semaglutide-d15 (CAS 910463-68-2(non-labelled))
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