2-[4-(4-Nitrophenyl)piperazino]ethyl 4-fluorobenzenecarboxylate CAS 338748-59-7
| CAS No. | 338748-59-7 |
| Molecular Formula | C19H20FN3O4 |
| Molecular Weight | 373.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-[4-(4-Nitrophenyl)piperazino]ethyl 4-fluorobenzenecarboxylate is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-[4-(4-Nitrophenyl)piperazino]ethyl 4-fluorobenzenecarboxylate (CAS 338748-59-7), a certified reference material (molecular formula C19H20FN3O4, MW 373.38 g/mol) for analytical method development and quality control.
Based on its molecular formula C19H20FN3O4, 2-[4-(4-Nitrophenyl)piperazino]ethyl 4-fluorobenzenecarboxylate contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 373.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C19H20FN3O4 |
| Molecular Weight | 373.38 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Nitrophenyl Standards
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Recommended Standards
- 1-(4-Fluorobenzyl)-2-oxo-N-phenyl-1,2-dihydro-1,8-naphthyridine-3-carboxamide (CAS 946352-89-2)
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- 4-chloro-2-methyl-6-nitrophenol (CAS 1760-71-0)
- 3-Bromo-6-chloro-7-iodoimidazo[1,2-b]pyridazin-8-amine (CAS 2664901-38-4)
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- <I>N</I>-Boc-pyrrole-2-carboxaldehyde (CAS 161282-57-1)
- 7-Aza-2-oxindole hydrochloride (CAS 1427367-62-1)
- 3-Ethoxy-4-((5-methylthieno[2,3-d]pyrimidin-4-yl)amino)benzamide (CAS 917908-06-6)
- 2-Carboethoxy-3-(3,4-dimethylphenyl)propiophenone (CAS 898778-99-9)
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- [(2,5-dichlorophenyl)methyl]triphenylphosphanium chloride (CAS 1485415-16-4)
- (3aS,4R,5S,6aR)-4-((Benzyloxy)methyl)-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl [1,1'-biphenyl]-4-carboxylate (CAS 31752-98-4)
- (4-(3-Oxocyclobutyl)phenyl)boronic acid (CAS 254893-03-3)
- Tirzepatide Impurity 12 (CAS CATO-C4X-324012)
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