5-(3,4-Dichlorophenyl)-1-(4-fluorophenyl)-1H-pyrazole-3-carboxylic acid CAS 477712-33-7
| CAS No. | 477712-33-7 |
| Molecular Formula | C16H9Cl2FN2O2 |
| Molecular Weight | 351.16 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 5-(3,4-Dichlorophenyl)-1-(4-fluorophenyl)-1H-pyrazole-3-carboxylic acid.
5-(3,4-Dichlorophenyl)-1-(4-fluorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 477712-33-7), molecular formula C16H9Cl2FN2O2 and molecular weight 351.16 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C16H9Cl2FN2O2, 5-(3,4-Dichlorophenyl)-1-(4-fluorophenyl)-1H-pyrazole-3-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 351.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 5-(3,4-Dichlorophenyl)-1-(4-fluorophenyl)-1H-pyrazole-3-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 | C16H9Cl2FN2O2 |
| Molecular Weight | 351.16 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.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichlorophenyl Standards
- 2-(4-(3-(3,4-Dichlorophenyl)-3-oxoprop-1-en-1-yl)phenoxy)acetic acid (CAS 31824-95-0)
- 2-(2,4-Dichlorophenyl)-5-(4-nitrophenyl)-1H-1,2,4-triazol-3(2H)-one (CAS 1000571-77-6)
- 2-(2,4-Dichlorophenyl)-5-(3-nitrophenyl)-1H-1,2,4-triazol-3(2H)-one (CAS 1000575-62-1)
- 1-((2,4-Dichlorophenyl)sulfonyl)-4-(2-hydroxyethyl)-5-methyl-1,2-dihydro-3H-pyrazol-3-one (CAS 866050-07-9)
- Methyl 2-(2,4-dichlorophenyl)-4-(3-methylphenyl)-4-oxobutanoate (CAS 344281-32-9)
- 1-(2-(2,6-Dichlorophenyl)-1-hydroxyethyl)-2-phenylpyrazolidin-3-one (CAS 60260-70-0)
- 6-(2,6-Dichlorophenyl)-8-methyl-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-imine (CAS 185039-29-6)
- 2-((2,4-Dichlorophenyl)thio)-1-(2-methylimidazo[1,2-a]pyridin-3-yl)ethan-1-one (CAS 861209-08-7)
Recommended Standards
- 3-(6-Iodo-2,3-dihydrobenzotriazol-1-yl)thietane 1,1-dioxide (CAS 2717861-77-1)
- 5-Chloro-4-(4-chlorophenoxy)-2-(4-fluorophenyl)-2,3-dihydropyridazin-3-one (CAS 551921-40-5)
- 3-(5-Iodo-2,3-dihydrobenzotriazol-1-yl)thietane 1,1-dioxide (CAS 2721851-75-6)
- 3-[(2-Bromoacetyl)amino]-N-(4-fluorophenyl)-benzamide (CAS 1138443-21-6)
- Z-Arg(Mtr)-OtBu (C-3750.0001) (CAS 115608-60-1)
- Methyl 2-amino-2-iminoacetate (CAS 700796-91-4)
- Methyl ((benzyloxy)carbonyl)-D-histidinate (CAS 183866-89-9)
- 3-(1-Methyl-1H-benzo[d]imidazol-2-yl)propan-1-ol (CAS 116040-91-6)
- 2,2-dimethylcyclopentan-1-ol (CAS 37617-33-7)
- 2,5-Dibromo-4-fluorobenzoyl chloride (CAS 1804417-38-6)
- 2-(3-Ethynylphenyl)acetonitrile (CAS 1000514-27-1)
- 3-AMino-6-chloro-thieno[3,2-b]pyridine-2-carboxylic acid methyl ester (CAS 208994-12-1)
- methyl 2-chloro-7-methoxy-1,3-benzoxazole-5-carboxylate (CAS 1639480-20-8)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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