1-(2-Methylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid CAS 858265-45-9
| CAS No. | 858265-45-9 |
| Molecular Formula | C17H16N2O2 |
| Molecular Weight | 280.32 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.
CATO supplies 1-(2-Methylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 858265-45-9), a certified reference material (molecular formula C17H16N2O2, MW 280.32 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 1-(2-Methylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 280.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures 1-(2-Methylphenyl)-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 | C17H16N2O2 |
| Molecular Weight | 280.32 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Methylphenyl Standards
- 2-{2-[(2-methylphenyl)methyl]-1H-1,3-benzodiazol-1-yl}acetic acid (CAS 1097800-71-9)
- 1-(4-Methylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 858265-43-7)
- (4-methylphenyl)methyl (3S,4R)-4-(aminomethyl)-3-fluoropiperidine-1-carboxylate (CAS 918400-34-7)
- {1-methyl-2-[(3-methylphenyl)methanesulfonyl]-1H-imidazol-5-yl}methanol (CAS 338962-57-5)
- 1-(3-Methylphenyl)-5-(pyridin-3-yl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1338666-29-7)
- (4Z)-4-[2-(4-Methylphenyl)hydrazin-1-ylidene]-3,4-dihydro-1H-2-benzopyran-1,3-dione (CAS 1785889-61-3)
- 4-[5-(2-methylphenyl)-1,3,4-oxadiazol-2-yl]benzoic acid (CAS 924020-62-2)
- 4-[5-(3-methylphenyl)-1,3,4-oxadiazol-2-yl]benzoic acid (CAS 949393-13-9)
Recommended Standards
- 1-(2,5-Dimethoxyphenyl)-3-(1,3-dioxan-2-yl)propan-1-one (CAS 884504-42-1)
- 1-(3,4,5-Trimethoxybenzoyl)piperazine (CAS 53342-13-5)
- 1-(2,5-Diethoxy-4-nitrophenyl)pyrrolidine (CAS 68052-13-1)
- 1-(3,4-Dimethoxyphenyl)-3-(1,3-dioxan-2-yl)propan-1-one (CAS 884504-43-2)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-(2-methyl-1H-imidazol-1-yl)furan-2-yl)boronate (CAS 2223042-27-9)
- N,N-Dibutyl-2-bromobenzamide (CAS 349092-70-2)
- (S)-2-(1-Ethylpyrrolidin-3-yl)ethanamine (CAS 1412979-13-5)
- 2-Fluoro-4-(trifluoromethyl)phenylboronic Acid (CAS 503309-11-3)
- (3-Chloro-5-fluorophenyl)(2,5-difluorobenzyl)sulfane (CAS 1443352-70-2)
- N-(4-(Methylthio)benzo[d]thiazol-2-yl)-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamide (CAS 942002-55-3)
- 1-methylpiperidine-3-carboxylic acid (CAS 5657-70-5)
- (5-Cyclopropyl-1H-1,2,4-triazol-3-yl)(4-methoxyphenyl)methanamine (CAS 1708274-88-7)
- N'-(Imino(pyridin-4-yl)methyl)isonicotinimidohydrazide (CAS 108952-34-7)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
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