2-(2,4-Dinitrophenyl)cyclohexanone O-(4-fluorobenzyl)oxime CAS 478249-72-8
| CAS No. | 478249-72-8 |
| Molecular Formula | C19H18FN3O5 |
| Molecular Weight | 387.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(2,4-Dinitrophenyl)cyclohexanone O-(4-fluorobenzyl)oxime (CAS 478249-72-8) is a high-purity analytical reference standard with the molecular formula C19H18FN3O5 and a molecular weight of 387.36 g/mol.
Structurally, 2-(2,4-Dinitrophenyl)cyclohexanone O-(4-fluorobenzyl)oxime (C19H18FN3O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 387.36 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C19H18FN3O5 |
| Molecular Weight | 387.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Dinitrophenyl Standards
- 2-(2,4-Dinitrophenyl)cyclohexanone O-(2-fluorobenzyl)oxime (CAS 478249-71-7)
- 2-(2,4-Dinitrophenyl)cyclohexanone O-(3-fluorobenzyl)oxime (CAS 477848-62-7)
- 2-(2,4-Dinitrophenyl)cyclohexanone N-(6-chloro-2-pyridinyl)hydrazone (CAS 672949-58-5)
- (E)-2-(2-(2,4-dinitrophenyl)hydrazono)-1,2-diphenylethan-1-ol (CAS 13804-47-2)
- N-(2,4-dinitrophenyl)-1,2,3,4-tetrahydro-1,4-epiminonaphtho[2,1-b]oxepin-12-amine (CAS 22794-77-0)
- Bis(2,4-dinitrophenyl) disulfide (CAS 2217-55-2)
- 2-(2,4-Dinitrophenyl)cyclohexanone N-(6-fluoro-2-pyridinyl)hydrazone (CAS 672949-55-2)
- 2-[({[2-(2,4-Dinitrophenyl)cyclohexyliden]amino}oxy)carbonyl]furan (CAS 383147-14-6)
Recommended Standards
- 2,3,4,9-Tetrahydro-1H-carbazol-1-one O-((3-(trifluoromethyl)phenyl)carbamoyl) oxime (CAS 860612-30-2)
- 4-((2-Oxo-5-(trifluoromethyl)pyridin-1(2H)-yl)methyl)-N-(pyridin-2-ylmethyl)benzamide (CAS 339025-29-5)
- 1-(p-Tolyl)-4-(3-(4-(trifluoromethyl)phenyl)-1,2,4-oxadiazol-5-yl)pyrrolidin-2-one (CAS 946376-30-3)
- 4-((2-Oxo-5-(trifluoromethyl)pyridin-1(2H)-yl)methyl)-N-(pyridin-3-ylmethyl)benzamide (CAS 339025-27-3)
- 1-(3,4-Dimethylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide (CAS 902884-13-3)
- 2-Diazo-1-oxo naphthalene-5-sulfonyl chloride (CAS 138863-74-8)
- 2-(5-Hydroxy-4-methyl-3-phenyl-4,5-dihydroisoxazol-5-yl)benzoic acid (CAS 63826-30-2)
- 2-(Benzyloxy)-4-chloropyridine (CAS 1006052-55-6)
- 3-Nitrocinnoline-4-carbonitrile (CAS 87953-99-9)
- Ethyl 3-Methylpyrazine-2-carboxylate (CAS 25513-92-2)
- Vortioxetine Impurity 131 HCl (CAS CATO-C4X-1056131)
- (R)-2,3-Bis((tert-butoxycarbonyl)amino)propanoic acid (CAS 159652-30-9)
- 2-Fluoro-4-(trifluoromethoxy)benzamide (CAS 1240257-18-4)
- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
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