3-(3-Chlorophenyl)-4-methyl-1H-pyrazole CAS 59843-67-3
| CAS No. | 59843-67-3 |
| Molecular Formula | C10H9ClN2 |
| Molecular Weight | 192.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-(3-Chlorophenyl)-4-methyl-1H-pyrazole (CAS 59843-67-3), a certified reference material (molecular formula C10H9ClN2, MW 192.64 g/mol) for analytical method development and quality control.
The molecular framework of 3-(3-Chlorophenyl)-4-methyl-1H-pyrazole (C10H9ClN2) 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
CATO manufactures 3-(3-Chlorophenyl)-4-methyl-1H-pyrazole 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 | C10H9ClN2 |
| Molecular Weight | 192.64 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
- 1-(3-Chlorophenyl)-5-methyl-1H-pyrazole (CAS 1247358-87-7)
- 1-(2-Chlorophenyl)-5-methyl-1H-pyrazole (CAS 1247358-96-8)
- 4-(3-Chlorophenyl)-1-methyl-1H-pyrazole (CAS 1266991-19-8)
- 1-(3-Chlorophenyl)-4-methyl-1H-pyrazole (CAS 154396-09-5)
- 1-(2-chlorophenyl)-3-methyl-1H-pyrazole (CAS 1613303-64-2)
- (4E)-5-(4-Chlorophenyl)penta-1,4-dien-3-one, E (CAS 1613309-12-8)
- 1-(4-Chlorophenyl)-3-methyl-1H-pyrazole (CAS 27301-77-5)
- 1-(4-Chlorophenyl)-5-methyl-1H-pyrazole (CAS 671182-58-4)
Recommended Standards
- 3-(2-Chloropropanoyl)-1-(propan-2-yl)urea (CAS 879319-32-1)
- 3-(4-Chlorophenyl)-4-methyl-1H-pyrazole (CAS 59843-61-7)
- 3-(2-Chloroacetyl)-1-(2-methylpropyl)urea (CAS 560995-27-9)
- 3-(Chloromethyl)-1-phenyl-1h-pyrazole (CAS 83959-39-1)
- 2-((5-Benzyl-4-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-(4-butylphenyl)acetamide (CAS 868256-49-9)
- 7-Bromo-N-(2,2-difluoroethyl)-1-methyl-1H-indazol-3-amine (CAS 1626336-36-4)
- 1-Phenethyl-4-(phenylethynyl)benzene (CAS 906650-60-0)
- tert-Butyl (2-(difluoromethyl)pyridin-4-yl)carbamate (CAS 1816283-57-4)
- 3,3-Dimethyl-2,3-dihydrofuro[3,2-b]pyridine-5-carboxylic acid (CAS 2899346-21-3)
- 2-(4-Amino-5-methyl-2-pyridyl)acetonitrile (CAS 1805106-48-2)
- Bis(perfluoroethyl)phosphinic acid (CAS 103321-11-5)
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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