1-(3-Chloro-4-fluorophenyl)-3-(4-fluorophenyl)-1H-pyrazole-5-carboxylic acid CAS 618102-76-4
| CAS No. | 618102-76-4 |
| Molecular Formula | C16H9ClF2N2O2 |
| Molecular Weight | 334.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-(3-Chloro-4-fluorophenyl)-3-(4-fluorophenyl)-1H-pyrazole-5-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-(3-Chloro-4-fluorophenyl)-3-(4-fluorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-76-4) is a high-purity analytical reference standard with the molecular formula C16H9ClF2N2O2 and a molecular weight of 334.70 g/mol.
1-(3-Chloro-4-fluorophenyl)-3-(4-fluorophenyl)-1H-pyrazole-5-carboxylic acid (C16H9ClF2N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; 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 1-(3-Chloro-4-fluorophenyl)-3-(4-fluorophenyl)-1H-pyrazole-5-carboxylic acid 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 | C16H9ClF2N2O2 |
| Molecular Weight | 334.70 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 3-Chloro-2-(2-(phenylsulfonyl)-1H-pyrrol-1-yl)-5-(trifluoromethyl)pyridine (CAS 338406-56-7)
- Dimethyl 3,3'-dichlorobiphenyl-4,4'-dicarboxylate (CAS 1345472-30-1)
- 1-(1,2,3,4-Tetrahydronaphthalen-1-yl)propan-2-one (CAS 59175-42-7)
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- 2-((5-Methyl-4-phenyl-4h-1,2,4-triazol-3-yl)thio)acetic acid (CAS 200815-83-4)
- Triethylgallium (CAS 1115-99-7)
- 4-(tert-Butoxy)benzamide (CAS 99985-67-8)
- 4-methylsulfonyloxy-1H-indole-2-carboxylic acid (CAS 2755783-39-0)
- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
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