3-(4-Ethoxy-3-methylphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde CAS 431068-41-6
| CAS No. | 431068-41-6 |
| Molecular Formula | C19H18N2O2 |
| Molecular Weight | 306.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(4-Ethoxy-3-methylphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde 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.
3-(4-Ethoxy-3-methylphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde (CAS 431068-41-6), molecular formula C19H18N2O2 and molecular weight 306.36 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 3-(4-Ethoxy-3-methylphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 306.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C19H18N2O2 |
| Molecular Weight | 306.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 3-(4-isopropylphenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid (CAS 956181-55-8)
- spiro[1H-pyrrolo[2,3-b]pyridine-3,3'-cyclobutane]-1',2-dione (CAS 1638767-85-7)
- Methyl 4-Oxo-1-(4-(trifluoromethyl)phenyl)cyclohexanecarboxylate (CAS 1242314-02-8)
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- 4-(4-(Benzyloxy)phenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 616897-41-7)
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