5-tert-Butyl-1-phenyl-1H-pyrazole-3-carboxylic acid CAS 286435-97-0
| CAS No. | 286435-97-0 |
| Molecular Formula | C14H16N2O2 |
| Molecular Weight | 244.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-tert-Butyl-1-phenyl-1H-pyrazole-3-carboxylic acid (C14H16N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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.
5-tert-Butyl-1-phenyl-1H-pyrazole-3-carboxylic acid (CAS 286435-97-0), molecular formula C14H16N2O2 and molecular weight 244.29 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-tert-Butyl-1-phenyl-1H-pyrazole-3-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C14H16N2O2 |
| Molecular Weight | 244.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 5-Oxo-N-(2-phenylcyclopropyl)pyrrolidine-2-carboxamide (CAS 23887-48-1)
- 6-(4-Butoxyphenyl)pyridazin-3(2H)-one (CAS 58897-53-3)
- 5-Methyl-2-(3-methylphenethyl)furan-3-carboxylic acid (CAS 60300-20-1)
- 6-(4-Fluorophenyl)-2-(methylsulfanyl)pyridine-3-carbonitrile (CAS 252059-95-3)
- 2-(5-((3-(3-Chloro-4-ethoxyphenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)acetic acid (CAS 956958-57-9)
- 4-Bromo-2-(2-methoxyethoxy)toluene (CAS 1291487-18-7)
- 1-amino-4-ethylcycloheptane-1-carboxylic acid (CAS 1468480-24-1)
- 4-(3,4-Dimethoxyphenyl)-2-(((5-phenyl-1,3,4-oxadiazol-2-yl)methyl)thio)-6-(p-tolyl)nicotinonitrile (CAS 337497-81-1)
- 3,3,3-Trifluoro-2-(m-tolyloxy)propan-1-amine (CAS 886763-76-4)
- N1-(2-(3-methoxyphenoxy)ethyl)-N2,N2-dimethylethane-1,2-diamine (CAS 1225709-18-1)
- [1,4]Dithiino[2,3-b:5,6-b']dipyrazine (CAS 52879-26-2)
- (2R)-2-amino-3-(1-bicyclo[1.1.1]pentanyl)propanoic acid (CAS 2200552-04-9)
- Ethyl 3-(2-((tert-butoxycarbonyl)amino)ethyl)-1,2,4-oxadiazole-5-carboxylate (CAS 1053656-31-7)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
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