3-(4-Chlorophenyl)-1H-pyrazole-4-carbaldehydeoxime CAS 1199253-23-0
| CAS No. | 1199253-23-0 |
| Molecular Formula | C10H8ClN3O |
| Molecular Weight | 221.64 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 3-(4-Chlorophenyl)-1H-pyrazole-4-carbaldehydeoxime.
3-(4-Chlorophenyl)-1H-pyrazole-4-carbaldehydeoxime (CAS 1199253-23-0) is a high-purity analytical reference standard with the molecular formula C10H8ClN3O and a molecular weight of 221.64 g/mol.
The molecular framework of 3-(4-Chlorophenyl)-1H-pyrazole-4-carbaldehydeoxime (C10H8ClN3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-(4-Chlorophenyl)-1H-pyrazole-4-carbaldehydeoxime 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 | C10H8ClN3O |
| Molecular Weight | 221.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenyl Standards
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- 5-(4-Chlorophenyl)-3-methylisoxazole-4-carbaldehyde (CAS 1208081-07-5)
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- trans-2-(4-(tert-Butyl)phenyl)cyclopentanol (CAS 933674-36-3)
- 1,3-Dimethyl-5-ethylbenzene (CAS 934-74-7)
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