1-(4-Phenoxyphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid CAS 1264042-88-7
| CAS No. | 1264042-88-7 |
| Molecular Formula | C22H18N2O3 |
| Molecular Weight | 358.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-(4-Phenoxyphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264042-88-7) is a high-purity analytical reference standard with the molecular formula C22H18N2O3 and a molecular weight of 358.39 g/mol.
The molecular framework of 1-(4-Phenoxyphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (C22H18N2O3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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).
CATO manufactures 1-(4-Phenoxyphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid 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 | C22H18N2O3 |
| Molecular Weight | 358.39 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Related Phenoxyphenyl Standards
- 1-(4-Phenoxyphenyl)-5-(pyridin-4-yl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1326843-89-3)
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- N-(4-phenoxyphenyl)-2-(1,2,3,4-tetrahydroisoquinolin-1-yl)acetamide (CAS 338793-51-4)
- N-(4-phenoxyphenyl)-5-phenyl-1,2,4-oxadiazole-3-carboxamide (CAS 400084-42-6)
- 1-Butyl-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 2213398-77-5)
- 4-{[(4-phenoxyphenyl)amino]methylidene}-3-phenyl-4,5-dihydro-1H-pyrazol-5-one (CAS 477850-98-9)
- Ethyl 2-(2-((4-phenoxyphenyl)amino)thiazol-4-yl)acetate (CAS 1024040-00-3)
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Recommended Standards
- m-dPEG<SUP>®</SUP><SUB>4</SUB>-MAL (CAS 1263044-81-0)
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- (2E)-1-(2,4-Dimethoxyphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (CAS 1262675-76-2)
- Isoatriplicolide tiglate (CAS 133559-39-4)
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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