4-Ethyl-5-(4-methoxyphenyl)-1,3-diphenyl-1H-pyrazole CAS 289725-89-9
| CAS No. | 289725-89-9 |
| Molecular Formula | C24H22N2O |
| Molecular Weight | 354.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Ethyl-5-(4-methoxyphenyl)-1,3-diphenyl-1H-pyrazole (CAS 289725-89-9), molecular formula C24H22N2O and molecular weight 354.44 g/mol, is a CATO reference standard with documented purity and traceability.
4-Ethyl-5-(4-methoxyphenyl)-1,3-diphenyl-1H-pyrazole (C24H22N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 4-Ethyl-5-(4-methoxyphenyl)-1,3-diphenyl-1H-pyrazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C24H22N2O |
| Molecular Weight | 354.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 1-(4-Methoxyphenyl)-3-(4-(4-methoxyphenyl)piperazin-1-yl)propan-1-one (CAS 477328-89-5)
- 4-Ethyl-3-(4-methoxyphenyl)-1,5-diphenyl-1H-pyrazole (CAS 289725-88-8)
- N-(4-(5-((4-Methoxyphenyl)(methyl)amino)-1,3,4-thiadiazol-2-yl)phenyl)acetamide (CAS 1021134-25-7)
- 1-(4-(6-(2-Methoxyphenyl)pyridazin-3-yl)piperazin-1-yl)pentan-1-one (CAS 1049292-32-1)
- 1-(4-(4-Methoxyphenyl)thiazol-2-yl)-4-(thiophen-2-yl)-1H-pyrazol-5-amine (CAS 955967-06-3)
- 1-(4-(4-Methoxyphenyl)thiazol-2-yl)-4-(thiophen-3-yl)-1H-pyrazol-5-amine (CAS 955967-07-4)
- N'-(1-(4-Methoxyphenyl)ethylidene)-5-(5-methylthiophen-2-yl)-1H-pyrazole-3-carbohydrazide (CAS 303106-47-0)
- 2-(4-Methoxyphenyl)-N-(4-(4-methoxyphenyl)thiazol-2-yl)acetamide (CAS 679411-78-0)
Recommended Standards
- 5-Naphthyltetracene (CAS 52711-99-6)
- 4-Acetoxy-4'-pentyloxybenzophenone (CAS 890099-91-9)
- 6-(Dibenzylamino)-4-methylisoquinolin-1(2H)-one (CAS 918812-86-9)
- 4,4'-(Octane-1,8-diylbis(oxy))dibenzaldehyde (CAS 77355-03-4)
- 3-Bromopyridine-2,5-dicarboxylic acid (CAS 1260664-10-5)
- 3-Fluoro-5-methylphenethyl oxazole-4-carboxylate (CAS 61151-99-3)
- 2-(4-Phenyltetrahydro-2H-pyran-4-yl)acetic acid (CAS 80813-10-1)
- 6-Methyl-4,5,6,7-tetrahydrofuro[2,3-c]pyridine-2-carbonitrile (CAS 1194376-58-3)
- 1-(4-(2,4-Dichlorophenyl)-1H-pyrrol-3-yl)ethanone (CAS 87388-53-2)
- [(3R)-4-methyl-5-oxo-morpholin-3-yl]methyl 4-methylbenzenesulfonate (CAS 1948235-83-3)
- 2-Methyl-2-(S-methylsulfonimidoyl)propane (CAS 1085526-21-1)
- 5-(4-Methoxyphenyl)-6-thioxo-1,5,6,7-tetrahydro-4h-pyrazolo[3,4-d]pyrimidin-4-one (CAS 724702-72-1)
- Spiro[2.3]hexane-5-carbonitrile (CAS 872988-59-5)
- Peptide YY (13-36) (canine, mouse, porcine, rat) (CAS 86895-09-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com