3-(4-Chlorophenyl)-1-(3-nitrophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole CAS 343374-72-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 343374-72-1 |
| Molecular Formula | C21H16ClN3O2 |
| Molecular Weight | 377.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(4-Chlorophenyl)-1-(3-nitrophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole (CAS 343374-72-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C21H16ClN3O2. Molecular weight: 377.82 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C21H16ClN3O2 |
| Molecular Weight | 377.82 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenyl Standards
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- 5-(4-Chlorophenyl)-1-(4-sulfamoylphenyl)pyrazole-3-carboxylic acid (CAS 170571-19-4)
- 2-(4-(4-Chlorophenyl)-2-methyl-3-oxo-1,2,4-oxadiazolidin-5-yl)-N-(4-fluorobenzyl)acetamide (CAS 478033-67-9)
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Recommended Standards
- 2-{[5-chloro-1-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-4-yl](methyl)amino}ethyl cyclopropanecarboxylate (CAS 477867-34-8)
- N-(5-chloro-2-methoxyphenyl)-2-(2-(4-ethylphenoxy)acetyl)hydrazine-1-carboxamide (CAS 904197-37-1)
- 1-Chloro-8-((4-ethoxyphenyl)amino)anthracene-9,10-dione (CAS 848679-23-2)
- 2-(4-Amino-1,2,5-oxadiazol-3-yl)acetamide (CAS 383881-15-0)
- 4-(Chloromethyl)-2-(2-methoxyphenyl)thiazole (CAS 129486-80-2)
- 2-((2-Methoxy-5-methylphenyl)amino)acetamide (CAS 923256-20-6)
- 5,7-Octadien-2-ol, 2,6-dimethyl- (CAS 5986-38-9)
- 3-(4-iodo-1-oxo-isoindolin-2-yl)piperidine-2,6-dione (CAS 2207541-30-6)
- N-(4-Acetylphenyl)-2-(pyrrolidin-1-yl)acetamide (CAS 406930-20-9)
- (Ser(PO3H2)202,Thr(PO3H2)205)-Tau Peptide (194-213) trifluoroacetate salt (CAS 2022956-55-2)
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 13829788188 / jacky.chen@cato-chem.com