3-(4-Chlorophenyl)-1,5-diphenyl-4,5-dihydro-1H-pyrazole CAS 10180-02-6
| CAS No. | 10180-02-6 |
| Molecular Formula | C21H17ClN2 |
| Molecular Weight | 332.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3-(4-Chlorophenyl)-1,5-diphenyl-4,5-dihydro-1H-pyrazole (CAS 10180-02-6), a certified reference material (molecular formula C21H17ClN2, MW 332.83 g/mol) for analytical method development and quality control.
Based on its molecular formula C21H17ClN2, 3-(4-Chlorophenyl)-1,5-diphenyl-4,5-dihydro-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 332.83 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C21H17ClN2 |
| Molecular Weight | 332.83 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
- 1-(4-Chlorophenyl)-N-((2-morpholinopyrimidin-5-yl)methyl)ethan-1-amine (CAS 1280981-01-2)
- 2-(4-Chlorophenyl)-4-{6-methyl-[1,2,4]triazolo[3,2-b][1,3]thiazol-5-yl}-1,3-thiazole (CAS 478080-31-8)
- 1-(2-Chlorophenyl)-3-(5-hydroxy-3-phenylpentyl)urea (CAS 1795301-96-0)
- 3-(5-(4-Chlorophenyl)furan-2-yl)-1-(4-methylpiperazin-1-yl)propan-1-one (CAS 853312-37-5)
- N-(4-Chlorophenyl)-2-{1-[5-(cyanomethyl)-2-thienyl]ethylidene}-1-hydrazinecarboxamide (CAS 866142-46-3)
- N-(4-chlorophenyl)-4-(pyridin-2-yl)piperazine-1-carbothioamide (CAS 431886-32-7)
- N-(4-chlorophenyl)-2-(3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazin-2-yl)acetamide (CAS 132858-26-5)
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Recommended Standards
- Chlorpheniramine Impurity 10 (CAS CATO-C4X-118810)
- 4-Chloro-5-methyl-N-(4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)pyrimidin-2-amine (CAS 1138473-55-8)
- Methyl 2-(4-(4-chlorobenzyl)phenoxy)-2-methylbutanoate (CAS 77985-11-6)
- 5-Chloro-4-{[(4-fluorophenyl)sulfanyl]methyl}-1-methyl-3-phenyl-1H-pyrazole (CAS 318234-11-6)
- 1-(2-(4-Methyl-6-(trifluoromethyl)pyrimidin-2-yl)ethyl)-3-(thiophen-2-yl)urea (CAS 1396862-55-7)
- 2-{7,8-dimethoxy-4-oxo-3H,4H,5H-pyrimido[5,4-b]indol-3-yl}acetic acid (CAS 1326864-64-5)
- (R)-tert-Butyl 3-((4-methylpyridin-2-yl)thio)pyrrolidine-1-carboxylate (CAS 1354010-71-1)
- 1-(2-Chlorobenzyl)-1h-pyrazol-5-amine (CAS 3524-28-5)
- (1-(3-Chloro-2-fluorophenyl)cyclobutyl)methanamine (CAS 1551124-62-9)
- Methyl 1-aminocyclopent-3-ene-1-carboxylate hydrochloride (CAS 1000386-67-3)
- 4-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-benzoic acid (CAS 17057-04-4)
- (E)-1-(4-methyl-1,2,5-oxadiazol-3-yl)ethan-1-one oxime (CAS 212254-68-7)
- (3-Amino-2-cyclopropylphenyl)boronic acid (CAS 2225180-87-8)
- D-Lys20-Tirzepatide (CAS CATO-CPTD788914)
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