5-(4-Methoxyphenyl)-3-(p-tolyl)-4,5-dihydroisoxazole CAS 51250-75-0
| CAS No. | 51250-75-0 |
| Molecular Formula | C17H17NO2 |
| Molecular Weight | 267.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-(4-Methoxyphenyl)-3-(p-tolyl)-4,5-dihydroisoxazole (CAS 51250-75-0), a certified reference material (molecular formula C17H17NO2, MW 267.32 g/mol) for analytical method development and quality control.
5-(4-Methoxyphenyl)-3-(p-tolyl)-4,5-dihydroisoxazole (C17H17NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. 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 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.
As a certified reference material (CRM), 5-(4-Methoxyphenyl)-3-(p-tolyl)-4,5-dihydroisoxazole 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 | C17H17NO2 |
| Molecular Weight | 267.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 1 |
Related Methoxyphenyl Standards
- (E)-4-((4-methoxyphenyl)amino)-3-phenylbut-3-en-2-one (CAS 1164560-22-8)
- 2,3-Bis(4-methoxyphenyl)propanenitrile (CAS 72035-46-2)
- Trans-3-(4-methoxyphenyl)-4-methyl-5-phenyl-4,5-dihydroisoxazole (CAS 61191-48-8)
- Trans-3-(4-methoxyphenyl)-5-methyl-4-phenyl-4,5-dihydroisoxazole (CAS 61191-49-9)
- n-[(4-methoxyphenyl)methyl]-2-methyl-1h-1,3-benzodiazol-5-amine (CAS 1157739-20-2)
- (1-(4-Methoxyphenyl)-4-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)methanamine (CAS 690199-95-2)
- 3-(4-Methoxyphenyl)-4-methyl-5-(methylsulfonyl)-4H-1,2,4-triazole (CAS 116850-69-2)
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Recommended Standards
- 5-(2-(Benzyloxy)ethoxy)-1H-indole (CAS 445490-65-3)
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- 5-((4-Methylbenzyl)oxy)-3,4-dihydroisoquinolin-1(2H)-one (CAS 886951-50-4)
- 5-(Tert-butyl)-4-(morpholinomethyl)furan-2-carboxylic acid (CAS 799257-37-7)
- Hydroxyethylpiperazineethylthiosulfonic acid half sodium salt (CAS 103404-87-1)
- (S)-3-(4-Hydroxyphenyl)hex-4-ynoic acid (CAS 865233-35-8)
- 3-(3,4-Dichlorobenzoyl)-4-methylpyridine (CAS 1187170-94-0)
- Methyl 3-(6-oxo-2-propyl-4-(trifluoromethyl)-2,6-dihydro-7h-pyrazolo[3,4-b]pyridin-7-yl)propanoate (CAS 1018166-01-2)
- (6-Methylpyridin-2-yl)methanamine hydrochloride (CAS 1365836-53-8)
- Coronatine (CAS 62251-96-1)
- n-Methylisoquinoline-5-sulfonamide (CAS 84468-20-2)
- 8-Chloro-2-methoxy-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoxaline (CAS 2375920-49-1)
- Tetraethylammonium (fluoride) (CAS 665-46-3)
- Semaglutide impurity 235 (CAS CATO-C4X-2226235)
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