4-(2,4-Dichlorophenyl)-1-(2,4-difluorophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazole CAS 5349-97-3
| CAS No. | 5349-97-3 |
| Molecular Formula | C19H12Cl2F2N2S |
| Molecular Weight | 409.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(2,4-Dichlorophenyl)-1-(2,4-difluorophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazole.
4-(2,4-Dichlorophenyl)-1-(2,4-difluorophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazole (CAS 5349-97-3), molecular formula C19H12Cl2F2N2S and molecular weight 409.28 g/mol, is a CATO reference standard with documented purity and traceability.
4-(2,4-Dichlorophenyl)-1-(2,4-difluorophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazole (C19H12Cl2F2N2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-(2,4-Dichlorophenyl)-1-(2,4-difluorophenyl)-3-(thiophen-2-yl)-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 | C19H12Cl2F2N2S |
| Molecular Weight | 409.28 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 1-((2-(6-Bromoquinolin-4-yl)-1-(pyridin-2-yl)ethylidene)amino)pyrrolidin-2-one (CAS 476473-40-2)
- N-(6-Amino-2,4-dioxo-1,3-dipropyl-1,2,3,4-tetrahydropyrimidin-5-yl)-4-bromobenzamide (CAS 409345-41-1)
- 2-Methyl-3-(prop-2-yn-1-yl)quinoxaline (CAS 113477-56-8)
- 6-Fluorobenzothiazole-2-thiol (CAS 80087-71-4)
- 1-(2-Methylphenyl)-1h-1,2,3-triazole-4-carbaldehyde (CAS 1325724-91-1)
- (1,1-Difluoro-2-iodoethyl)benzene (CAS 133932-40-8)
- N-(2-fluorobenzyl)-N-methylpyrrolidine-2-carboxamide (CAS 1219187-72-0)
- N-(tert-Butyl)hydrazinecarboxamide (CAS 74255-46-2)
- 3-(3-Bromophenyl)-4-fluoropropiophenone (CAS 898782-48-4)
- N-methyl-1-(4-(pyrimidin-5-yl)phenyl)methanamine (CAS 859850-85-4)
- 10Alpha-hydroxy-exo-THC (CAS 56986-42-6)
- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
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