1-(2,3-Dimethylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid CAS 1264044-14-5
| CAS No. | 1264044-14-5 |
| Molecular Formula | C18H18N2O2 |
| Molecular Weight | 294.35 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-(2,3-Dimethylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264044-14-5), molecular formula C18H18N2O2 and molecular weight 294.35 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-(2,3-Dimethylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (C18H18N2O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures 1-(2,3-Dimethylphenyl)-5-phenyl-4,5-dihydro-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 | C18H18N2O2 |
| Molecular Weight | 294.35 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Related Dimethylphenyl Standards
- 2-(2-(3,4-Dimethylphenyl)-8-methylimidazo[1,2-a]pyridin-3-yl)acetic acid (CAS 1017141-21-7)
- N4-(2,3-Dimethylphenyl)-N2-(2-methoxyethyl)-L-asparagine (CAS 1031361-52-0)
- N4-(2,4-Dimethylphenyl)-N2-(3-hydroxypropyl)-L-asparagine (CAS 1037784-80-7)
- 1-(2,4-Dimethylphenyl)-3-(3-methoxyphenyl)-1H-pyrazol-5(4H)-one (CAS 1193024-21-3)
- 1-(3,4-Dimethylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264040-15-4)
- 1-(2,5-Dimethylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264041-74-8)
- 1-(3,5-Dimethylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264043-98-2)
- (2E)-2-[2-(2,3-Dimethylphenyl)hydrazin-1-ylidene]-3-(4-methylphenyl)-3-oxopropanal (CAS 338400-40-1)
Recommended Standards
- 1-(4-Ethylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264049-51-5)
- 1-(2-Ethylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264050-18-1)
- Tert-butyl 4-(2-hydrazinylpyrimidin-4-yl)piperazine-1-carboxylate (CAS 1306738-63-5)
- 1-(6-(Dimethoxymethyl)-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazin-1-yl)-2,2-dimethylpropan-1-one (CAS 1261365-93-8)
- n-(4-Iodophenyl)cyclobutanecarboxamide (CAS 666213-31-6)
- 2-(4-Nitrobenzyl)isoindoline-1,3-dione (CAS 62133-07-7)
- (7-Hydroxy-2-oxo-2H-chromen-4-yl)-acetic acid hydrazide, 97% (CAS 15991-14-7)
- 4-(4-(Trifluoromethyl)phenyl)oxazol-2-amine (CAS 859721-53-2)
- Donepezil EP Impurity A HCl (CAS 120013-39-0)
- 1,3-Bis(1H-imidazol-4-yl)benzene (CAS 794485-43-1)
- (S)-1-(tert-Butoxycarbonyl)-2-(3-nitrobenzyl)pyrrolidine-2-carboxylic acid (CAS 1217776-53-8)
- 5-(2-Hydroxyethyl)thiophen-2-ol (CAS 158364-98-8)
- Bicyclo[2.2.1]heptan-2-ylboronic Acid Pinacol Ester (CAS 174090-32-5)
- Semaglutide impurity 214 (CAS CATO-C4X-2226214)
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