3-(1-Ethyl-3-methyl-1h-pyrazol-4-yl)-1-(4-fluorophenyl)-1h-pyrazole-4-carboxylic acid CAS 956824-00-3
| CAS No. | 956824-00-3 |
| Molecular Formula | C16H15FN4O2 |
| Molecular Weight | 314.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(1-Ethyl-3-methyl-1h-pyrazol-4-yl)-1-(4-fluorophenyl)-1h-pyrazole-4-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(1-Ethyl-3-methyl-1h-pyrazol-4-yl)-1-(4-fluorophenyl)-1h-pyrazole-4-carboxylic acid (CAS 956824-00-3) is a high-purity analytical reference standard with the molecular formula C16H15FN4O2 and a molecular weight of 314.31 g/mol.
Structurally, 3-(1-Ethyl-3-methyl-1h-pyrazol-4-yl)-1-(4-fluorophenyl)-1h-pyrazole-4-carboxylic acid (C16H15FN4O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 314.31 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 3-(1-Ethyl-3-methyl-1h-pyrazol-4-yl)-1-(4-fluorophenyl)-1h-pyrazole-4-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 | C16H15FN4O2 |
| Molecular Weight | 314.31 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Recommended Standards
- 2-Fluoro-N-(4-methyl-5-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)benzamide (CAS 922127-66-0)
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- 2-(2-Fluorophenoxy)-N-(2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)acetamide (CAS 922131-47-3)
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- 4-(3-Iodophenyl)-1h-pyrazole (CAS 1399654-75-1)
- Diethyl 1,3-acetonedicarboxylate (CAS 105-50-0)
- 6-Hydroxy-2-methylnicotinic Acid (CAS 66909-37-3)
- Methyl 2-(2-allyl-3-oxocyclopentyl)acetate (CAS 73128-01-5)
- Methyl 3-chloro-5-fluoro-6-iodopicolinate (CAS 514798-20-0)
- 1-[(5-chloropyridin-2-yl)methyl]piperazine (CAS 1211532-37-4)
- 1-(4-Fluorophenyl)-2,3-butadien-1-one (CAS 1223611-91-3)
- 4-methyl-2-(1-methyl-1H-pyrazol-5-yl)benzaldehyde (CAS 1546847-01-1)
- Des-Ile27-Tirzepatide (CAS CATO-CPTD788946)
Why CATO?
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