Diethyl 1-(3,5-bis(trifluoromethyl)phenyl)-5-phenyl-1H-pyrazole-3,4-dicarboxylate CAS 96722-93-9
| CAS No. | 96722-93-9 |
| Molecular Formula | C23H18F6N2O4 |
| Molecular Weight | 500.39 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 Diethyl 1-(3,5-bis(trifluoromethyl)phenyl)-5-phenyl-1H-pyrazole-3,4-dicarboxylate.
Diethyl 1-(3,5-bis(trifluoromethyl)phenyl)-5-phenyl-1H-pyrazole-3,4-dicarboxylate (CAS 96722-93-9) is a high-purity analytical reference standard with the molecular formula C23H18F6N2O4 and a molecular weight of 500.39 g/mol.
Diethyl 1-(3,5-bis(trifluoromethyl)phenyl)-5-phenyl-1H-pyrazole-3,4-dicarboxylate (C23H18F6N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Diethyl 1-(3,5-bis(trifluoromethyl)phenyl)-5-phenyl-1H-pyrazole-3,4-dicarboxylate 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 | C23H18F6N2O4 |
| Molecular Weight | 500.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Diethyl Standards
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- Diethyl 5-((R)-2-((R)-5-(3-chlorophenyl)-2-oxooxazolidin-3-yl)propyl)benzo[d][1,3]dioxole-2,2-dicarboxylate (CAS 139013-14-2)
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Recommended Standards
- 3-((4-Bromophenyl)sulfonyl)-N-(m-tolyl)thieno[2,3-e][1,2,3]triazolo[1,5-a]pyrimidin-5-amine (CAS 892749-88-1)
- N-(4-Chloro-2-methoxy-5-methylphenyl)-2-((4-(4-chlorophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 476483-99-5)
- Nicergoline Impurity 28 (CAS CATO-C4X-208528)
- N-(2-Benzenesulfonamidoethyl)-2,5-bis(2,2,2-trifluoroethoxy)benzamide (CAS 338404-57-2)
- 2-Chloro-6-methyl-3-phenylquinoline (CAS 284664-59-1)
- 6-Acetamido-4-nitropyridine-2-sulfonyl chloride (CAS 1393559-14-2)
- (2R,4R)-4-hydroxypiperidine-2-carboxylic acid (CAS 189385-64-6)
- 1,6-Dimethyl-2-oxo-1,2-dihydroquinoline-4-carboxylic acid (CAS 104294-32-8)
- Pomalidomide-5'-C4-acid (CAS 2412056-33-6)
- 5-Bromo-2-chloroisonicotinic Acid (CAS 886365-31-7)
- 4-Amino-3,5-dimethyl-1H-pyrazole-1-carboximidamide (CAS 766483-29-8)
- 4-Bromo-3,3-difluorotetrahydrofuran (CAS 2436599-25-4)
- 2-Amino-4-(3,4-dimethoxyphenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile (CAS 164410-72-4)
- Experimental Allergic Encephalitogenic Peptide (CAS 29705-92-8)
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