4-(4-(Phenylsulfonyl)-2-(o-tolyl)oxazol-5-yl)morpholine CAS 663946-37-0
| CAS No. | 663946-37-0 |
| Molecular Formula | C20H20N2O4S |
| Molecular Weight | 384.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-(Phenylsulfonyl)-2-(o-tolyl)oxazol-5-yl)morpholine (CAS 663946-37-0) is a high-purity analytical reference standard with the molecular formula C20H20N2O4S and a molecular weight of 384.45 g/mol.
4-(4-(Phenylsulfonyl)-2-(o-tolyl)oxazol-5-yl)morpholine (C20H20N2O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H20N2O4S |
| Molecular Weight | 384.45 g/mol |
| 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 |
| Sulfur Atoms | 1 |
Related Phenylsulfonyl Standards
- 4-(4-(Phenylsulfonyl)-2-(p-tolyl)oxazol-5-yl)morpholine (CAS 307553-27-1)
- N-(2-(Phenylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)cyclopentanecarboxamide (CAS 954612-89-6)
- 1-(Phenylsulfonyl)-1H-pyrrolo[2,3-c]pyridine-3-boronic acid pinacol ester, 97% (CAS 1174038-65-3)
- 1-(phenylsulfonyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (CAS 886547-94-0)
- 1-(Phenylsulfonyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrolo[3,2-b]pyridine (CAS 2304634-98-6)
- 1-(Phenylsulfonyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (CAS 2058052-40-5)
- N-(2-(Phenylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)isoxazole-5-carboxamide (CAS 1210510-12-5)
- 1-(Phenylsulfonyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole (CAS 1256359-23-5)
Recommended Standards
- 4-((4-Ethoxy-3-methoxybenzylidene)amino)-3-(2-methoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478257-21-5)
- 4-((3-Ethoxy-4-hydroxybenzylidene)amino)-3-(3-ethoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 613249-73-3)
- 4-(Benzyloxy)-3-hydroxybenzyl Alcohol 3-p-Toluenesulfonate (CAS 65615-21-6)
- 3-[(4-tert-butoxycarbonyl-1,4-diazepan-1-yl)sulfonyl]benzoic acid (CAS 864685-22-3)
- 1-(2-Methyloxolan-2-yl)pent-4-en-1-one (CAS 80275-33-8)
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- TCBT 22 (CAS 121107-44-6)
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