1-Phenyl-5-(propan-2-yl)-1h-pyrazole-3-carboxylic acid CAS 3191-87-5
| CAS No. | 3191-87-5 |
| Molecular Formula | C13H14N2O2 |
| Molecular Weight | 230.26 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.
1-Phenyl-5-(propan-2-yl)-1h-pyrazole-3-carboxylic acid (CAS 3191-87-5), molecular formula C13H14N2O2 and molecular weight 230.26 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H14N2O2, 1-Phenyl-5-(propan-2-yl)-1h-pyrazole-3-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 230.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 1-Phenyl-5-(propan-2-yl)-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 | C13H14N2O2 |
| Molecular Weight | 230.26 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.) | 1957 |
| Nitrogen Atoms | 2 |
Related Phenyl Standards
- 1-Phenyl-3-(propan-2-yl)-1h-pyrazole-4-carboxylic acid (CAS 1003577-72-7)
- 5-[3-(propan-2-yl)phenyl]furan-2-carboxylic acid (CAS 1094267-53-4)
- 1-Phenyl-5-(propan-2-yl)-1h-pyrazole-4-carboxylic acid (CAS 116344-18-4)
- 5-Phenyl-1-(propan-2-yl)-1h-pyrazole-4-carboxylic acid (CAS 1308236-66-9)
- 1-Phenyl-3-(propan-2-yl)-1h-pyrazole-5-carboxylic acid (CAS 299165-57-4)
- 2-(Propan-2-yloxy)naphthalene-1-carboxylic acid (CAS 92190-51-7)
- 2-(Propan-2-yloxy)naphthalene-1-boronic acid (CAS 1084904-39-1)
- N-(Propan-2-yl)-3-(trifluoromethyl)benzamide (CAS 782-70-7)
Recommended Standards
- 1-Pyrene carboxaldehyde, 97% (CAS 3029-19-4)
- 1-Hydroxy-3-methyl-6h,7h,8h,9h,10h-cyclohexa[c]chromen-6-one (CAS 19815-03-3)
- 2-(((5-Methoxynaphthalen-1-yl)oxy)methyl)oxirane (CAS 76275-47-3)
- 1-Ethyl-4-imino-2-methyl-1,4-dihydroquinoline-3-carboxylic acid (CAS 922499-35-2)
- (1,3-dimethyl-1H-pyrazol-4-yl)boronic acid (CAS 1146616-03-6)
- 2-(Difluoromethyl)-5-methoxy-3-methylpyridine-6-carbonyl chloride (CAS 1805437-47-1)
- 4-ethenyloxan-4-ol (CAS 21378-19-8)
- (R)-2-(3-Fluorophenyl)pyrrolidine Hydrochloride (CAS 1364890-61-8)
- 3-Aminoheptan-1-ol (CAS 119910-50-8)
- Fmoc-PEG1-CH2CH2-NHS ester (CAS 1807521-05-6)
- Ethyl (E)-4-(styrylsulfonyl)piperazine-1-carboxylate (CAS 1164523-11-8)
- 2,4-Dichloro-6-fluorotoluene (CAS 1806351-18-7)
- Trans-Nonachlor (CAS 39765-80-5)
- Semaglutide impurity 193 (CAS CATO-C4X-2226193)
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