3-Phenyl-1-(p-tolyl)-1H-pyrazole-5-carboxylic acid CAS 618101-89-6
| CAS No. | 618101-89-6 |
| Molecular Formula | C17H14N2O2 |
| Molecular Weight | 278.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Phenyl-1-(p-tolyl)-1H-pyrazole-5-carboxylic acid (CAS 618101-89-6), molecular formula C17H14N2O2 and molecular weight 278.31 g/mol, is a CATO reference standard with documented purity and traceability.
3-Phenyl-1-(p-tolyl)-1H-pyrazole-5-carboxylic acid (C17H14N2O2) contains a steroid core, 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.
As a certified reference material (CRM), 3-Phenyl-1-(p-tolyl)-1H-pyrazole-5-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 | C17H14N2O2 |
| Molecular Weight | 278.31 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 3-Phenyl-1-(m-tolyl)-1H-pyrazole-5-carboxylic acid (CAS 618101-97-6)
- 3-Phenyl-1-(p-tolylamino)-1H-pyrrole-2,5-dione (CAS 271254-70-7)
- 3-Oxopropanenitrile (CAS 6162-76-1)
- 3-Phenyl-4-({[(pyridin-3-yl)methyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one (CAS 338975-73-8)
- cis-4,5,6,6a-Tetrahydro-3aH-cyclopenta[d]isoxazole-3-carboxylic Acid (CAS 52482-09-4)
- 5-((4-Methoxyphenoxy)methyl)furan-2-carboxylic acid (CAS 832739-39-6)
- 3-(2-Bromo-5-fluorophenoxy)propanenitrile (CAS 1379370-23-6)
- 3-Methoxy-1H-pyrrole-2-carbonitrile (CAS 54764-97-5)
- N,N,5-Trimethylpyrimidin-4-amine (CAS 56864-93-8)
- 5-(4-Methoxyphenoxy)-2-(methylthio)pyrimidine-4,6-diol (CAS 1375064-42-8)
- 39927-08-7 poly(ethylene glycol) bis(carboxymethyl) ether (CAS 39927-08-7)
- 3-(4-Bromophenyl)-3-methoxyoxetane (CAS 1838654-25-3)
- Methyl 6-(2,6-dimethylmorpholino)pyridazine-3-carboxylate (CAS 1311670-71-9)
- Integrin Binding Peptide trifluoroacetate salt (CAS 278792-07-7)
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