2-(4-chlorophenyl)-2-oxoacetaldehyde hydrate CAS 859932-64-2
| CAS No. | 859932-64-2 |
| Molecular Formula | C8H5ClO2 |
| Molecular Weight | N/A |
| 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 2-(4-chlorophenyl)-2-oxoacetaldehyde hydrate.
2-(4-chlorophenyl)-2-oxoacetaldehyde hydrate (CAS 859932-64-2), molecular formula C8H5ClO2H2O and molecular weight 186.59 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H5ClO2H2O, 2-(4-chlorophenyl)-2-oxoacetaldehyde hydrate contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 186.59 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.
As a certified reference material (CRM), 2-(4-chlorophenyl)-2-oxoacetaldehyde hydrate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H5ClO2 H2O |
| Molecular Weight | 186.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
Related chlorophenyl Standards
- 2-(2-Chlorophenyl)-2-(pyrrolidin-1-yl)acetamide (CAS 1000340-02-2)
- N-(2-Chlorophenyl)-5-methyl-1-phenyl-1H-1,2,4-triazole-3-carboxamide (CAS 1000572-01-9)
- N-(2-Chlorophenyl)-5-oxo-1-(p-tolyl)-2,5-dihydro-1H-1,2,4-triazole-3-carboxamide (CAS 1000573-94-3)
- Methyl 1-(2-chlorophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-3-carboxylate (CAS 1000576-85-1)
- 1-(4-Chlorophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-3-carboxylic acid phenylamide (CAS 1000577-01-4)
- Benzyl 1-(4-chlorophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-3-carboxylate (CAS 1000577-09-2)
- 1-(2-Chlorophenyl)-5-oxo-N-phenyl-2,5-dihydro-1H-1,2,4-triazole-3-carboxamide (CAS 1000577-29-6)
- 2-(2-Chlorophenyl)-1-phenylethan-1-amine (CAS 1000615-44-0)
Recommended Standards
- 2-[4-(trifluoromethyl)phenyl]cyclopentan-1-one (CAS 1253111-75-9)
- 2-(4-((tert-Butoxycarbonyl)amino)butoxy)ethyl 4-methylbenzenesulfonate (CAS 2681390-44-1)
- [3-[ethyl(methyl)amino]phenyl]boronic acid pinacol ester (CAS 2139400-47-6)
- Anlotinib Impurity 5 (CAS CATO-C4X-32835)
- Furosemide Impurity 28 (CAS 98-00-0)
- n-(2-(5-(2-Aminothiazol-4-yl)thiophen-2-yl)ethyl)acetamide hydrochloride (CAS 1153279-32-3)
- 4-(Pyrimidin-2-yl)benzonitrile (CAS 78322-96-0)
- N-(3-(hex-1-yn-1-yl)phenyl)thiophene-2-carboxamide (CAS 861209-77-0)
- N3-(sec-Butyl)-1-isopropyl-1H-pyrazole-3,4-diamine dihydrochloride (CAS 1431962-27-4)
- Uremic Pentapeptide (CAS 71494-20-7)
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