2-Chloro-4-(4-ethylpiperazino)benzaldehyde CAS 57981-52-9
| CAS No. | 57981-52-9 |
| Molecular Formula | C13H17ClN2O |
| Molecular Weight | 252.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-4-(4-ethylpiperazino)benzaldehyde (CAS 57981-52-9) is a high-purity analytical reference standard with the molecular formula C13H17ClN2O and a molecular weight of 252.74 g/mol.
2-Chloro-4-(4-ethylpiperazino)benzaldehyde (C13H17ClN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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.
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 | C13H17ClN2O |
| Molecular Weight | 252.74 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 4-Fluoro-3-nitrobenzene-1-sulfonyl fluoride (CAS 500585-16-0)
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- 4,4',4''-((Nitrilotris(benzene-4,1-diyl))tris(ethyne-2,1-diyl))tribenzoicacid (CAS 848569-04-0)
- [1-(2,2,2-Trifluoroethyl)-1H-pyrazol-3-yl]methanesulfonyl chloride (CAS 2091430-99-6)
- Peptide Impurity 82 (CAS 10491-78-8)
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