3-Chloro-1-phenyl-4,5-dihydro-1H-pyrazole CAS 58469-32-2
| CAS No. | 58469-32-2 |
| Molecular Formula | C9H9ClN2 |
| Molecular Weight | 180.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Chloro-1-phenyl-4,5-dihydro-1H-pyrazole (CAS 58469-32-2), a certified reference material (molecular formula C9H9ClN2, MW 180.63 g/mol) for analytical method development and quality control.
3-Chloro-1-phenyl-4,5-dihydro-1H-pyrazole (C9H9ClN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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-Chloro-1-phenyl-4,5-dihydro-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 | C9H9ClN2 |
| Molecular Weight | 180.63 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 351155-45-8 6-Bromo-2-(3,4-dimethyl-phenyl)-quinoline-4-carboxylic acid 6-bromo-2-(3,4-dimethylphenyl)-quinoline-4-carboxylic acid 6-bromo-2-(3,4-dimethylphenyl)quinoline-4-carboxylic acid (CAS 351155-45-8)
- 2,5-Dimethyl-1-{1,4,6-trimethyl-1H-pyrazolo[3,4-b]pyridin-3-yl}-1H-pyrrole (CAS 866131-85-3)
- 5-Chloro-3-(difluoromethyl)-6-fluoropyridin-2-amine (CAS 1804722-85-7)
- 1-(2-Methylfuran-3-carbonyl)piperidine-2-carboxylic acid (CAS 1103321-24-9)
- 7-Methoxypyrido[2,3-b]pyrazine (CAS 1337880-59-7)
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- 5-Bromobenzo[d]thiazole-2-sulfonic acid (CAS 1215205-70-1)
- 4-Chloro-1-methyl-2-oxo-2,5-dihydro-1H-pyrrole-3-carbonitrile (CAS 1447964-70-6)
- 3-(2-Chloroethyl)-1-methylpiperidine (CAS 1174651-05-8)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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