1-(3-Chlorophenyl)-4-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine CAS 321385-92-6
| CAS No. | 321385-92-6 |
| Molecular Formula | C16H13Cl2N3 |
| Molecular Weight | 318.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 318.20 g/mol gives 1-(3-Chlorophenyl)-4-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1-(3-Chlorophenyl)-4-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine (CAS 321385-92-6), a certified reference material (molecular formula C16H13Cl2N3, MW 318.20 g/mol) for analytical method development and quality control.
The molecular framework of 1-(3-Chlorophenyl)-4-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine (C16H13Cl2N3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C16H13Cl2N3 |
| Molecular Weight | 318.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenyl Standards
- 1,4-Bis(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine (CAS 321391-75-7)
- N-(3-chlorophenyl)-4-(2-chloropyridin-4-yl)-1,3,5-triazin-2-amine (CAS 652153-37-2)
- 2-(1-(4-Chlorophenyl)-1-phenylethoxy)-N,N-dimethylpropan-1-amine (CAS 5668-06-4)
- 5-((4-(4-Chlorophenyl)piperazin-1-yl)methyl)-2-methylpyrimidin-4-amine (CAS 189744-35-2)
- 2-(3-(2-Chlorophenyl)propyl)-6-methoxy-N-methylbenzamide (CAS 1171923-12-8)
- 3-(5-(4-Chlorophenyl)furan-2-yl)-1-(piperidin-1-yl)propan-1-one (CAS 853312-23-9)
- 4-(4-Chlorophenyl)-1,7lambda6-dithia-4-azaspiro[4.4]nonane-3,7,7-trione (CAS 879641-88-0)
- {1-[(4-Chlorophenyl)sulfonyl]piperidin-4-yl}acetic acid (CAS 1142209-57-1)
Recommended Standards
- 1-(2,4-Dichlorophenyl)-3-(p-tolyl)-1H-pyrazol-5-amine (CAS 956961-77-6)
- 1-(5-(Benzyloxy)-2,4-dichlorophenyl)-1H-pyrrole (CAS 338966-96-4)
- 1-(2,4-Dichlorophenyl)-3-(2-morpholinoethyl)urea (CAS 712336-31-7)
- 1-(2,4-Dichlorobenzyl)-2-methyl-1H-indole-3-carbaldehyde (CAS 92407-87-9)
- 4-(5-chlorothiophen-2-yl)-1H-imidazol-2-amine sulfuric acid (CAS 1423034-39-2)
- methyl 2-methyl-4-(2-nitrophenyl)-5-oxo-5,7-dihydrofuro[3,4-b]pyridine-3-carboxylate (CAS 34785-00-7)
- 2,6-Dichloro-4-(trifluoromethoxy)pyridine (CAS 1361889-82-8)
- (2R,3S,4S,5R,6S)-2-(Acetoxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 55692-87-0)
- 5-((3-Chloro-4-methoxyphenyl)amino)pentan-1-ol (CAS 1249586-75-1)
- tert-Butyl 4-{[(3ar,5r,6s,6ar)-6-hydroxy-2,2-dimethyl-tetrahydro-2h-furo[2,3-d][1,3]dioxol-5-yl]methyl}piperazine-1-carboxylate (CAS 1212660-14-4)
- Azilsartan Impurity 22 (CAS CATO-C4X-109622)
- 2-((5-Bromo-2-methoxyphenoxy)methyl)-1,3-dioxolane (CAS 1443345-41-2)
- 3-(4-Chlorobenzylidene)indolin-2-one (CAS 3335-90-8)
- Semaglutide Impurity 2 (CAS CATO-C4X-22262)
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