1-(3-Chlorophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid CAS 1264041-01-1
| CAS No. | 1264041-01-1 |
| Molecular Formula | C16H13ClN2O2 |
| Molecular Weight | 300.74 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 1-(3-Chlorophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid.
CATO supplies 1-(3-Chlorophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264041-01-1), a certified reference material (molecular formula C16H13ClN2O2, MW 300.74 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H13ClN2O2, 1-(3-Chlorophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 300.74 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H13ClN2O2 |
| Molecular Weight | 300.74 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
- 3-(4-Chlorophenyl)-1-(4,6-dimethylpyrimidin-2-yl)-1H-pyrazol-5-ol (CAS 1010866-05-3)
- 3-(1-(2-Chlorophenyl)-2-nitroethyl)-1H-indole (CAS 1018239-17-2)
- methyl 3-[(2-chlorophenyl)methyl]imidazo[1,5-a]pyridine-1-carboxylate (CAS 1020253-32-0)
- (3Z)-3-{[(4-chlorophenyl)amino]methylidene}-1-(pyrimidin-2-yl)pyrrolidin-2-one (CAS 1164471-74-2)
- 1-(4-Chlorophenyl)-3-(4-methoxyphenyl)-1H-pyrazol-5-ol (CAS 1174858-83-3)
- 2-{[5-(3-chlorophenyl)-1,3-oxazol-2-yl]methoxy}aniline (CAS 1183067-04-0)
- 1-(4-Chlorophenyl)-3-(4-methoxyphenyl)-1H-pyrazol-4-ol (CAS 1202029-35-3)
- 2-[(4-Chlorophenyl)amino]-4H-chromene-3-carboxamide (CAS 1260912-44-4)
Recommended Standards
- 1-(2-Chlorophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264042-14-9)
- (S)-2-((tert-Butoxycarbonyl)(pyridin-3-yl)amino)-2-chloropropanoic acid (CAS 1241681-27-5)
- 3-(3-Chlorophenyl)-1-(3-methylpyridin-2-yl)pyrrolidine-2,5-dione (CAS 132458-99-2)
- 4-Amino-N-(2-chloro-5-fluorophenyl)benzenesulfonamide (CAS 1208077-12-6)
- 3,3-Difluoro-2,2-dimethylpropan-1-amine hydrochloride (CAS 1949816-36-7)
- rac-(1R,2R)-2-(3,4-dimethylphenyl)cyclopropane-1-carboxylic acid (CAS 220353-13-9)
- 2-Methoxyacridine-9-carbaldehyde (CAS 113965-30-3)
- 4,5-Dihydro-3H-benzo[c]azepine (CAS 23758-95-4)
- 5-tert-Butyl 3-ethyl 6,7-dihydro-1H-pyrazolo[4,3-c]pyridine-3,5(4H)-dicarboxylate (CAS 518990-23-3)
- 2-(Cyclopropyl((1-methylpiperidin-4-yl)methyl)amino)ethanol (CAS 1353976-61-0)
- Isosorbide Dinitrate Impurity 11 (CAS 110627-22-0)
- 5-Amino-2-chloro-N,N-diethylbenzene-1-sulfonamide (CAS 571150-08-8)
- 4-(Azetidin-1-ylmethyl)-1H-indole (CAS 1001395-40-9)
- SAMS Peptide (CAS 125911-68-4)
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