2,4,6-Trimethyl-3-(5-methyl-4-phenylisoxazol-3-yl)benzenesulfonamide CAS 775344-85-9
| CAS No. | 775344-85-9 |
| Molecular Formula | C19H20N2O3S |
| Molecular Weight | 356.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,4,6-Trimethyl-3-(5-methyl-4-phenylisoxazol-3-yl)benzenesulfonamide (CAS 775344-85-9), molecular formula C19H20N2O3S and molecular weight 356.44 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2,4,6-Trimethyl-3-(5-methyl-4-phenylisoxazol-3-yl)benzenesulfonamide (C19H20N2O3S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2,4,6-Trimethyl-3-(5-methyl-4-phenylisoxazol-3-yl)benzenesulfonamide 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 | C19H20N2O3S |
| Molecular Weight | 356.44 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Trimethyl Standards
- 1,7,7-Trimethyl-3-(pyrrolidin-1-ylmethyl)bicyclo[2.2.1]heptan-2-yl 4-aminobenzoate (CAS 17066-42-1)
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Recommended Standards
- 2-(4-Acetylbenzamido)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxamide (CAS 477494-71-6)
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- 2-(1-Benzylpiperidin-4-yl)-2H-benzo[e][1,2,3,4]thiatriazine 1,1-dioxide (CAS 866153-05-1)
- 3-(2-(4-(Tert-butoxycarbonyl)piperazin-1-yl)ethoxy)thiophene-2-carboxylic acid (CAS 924869-16-9)
- tert-Butyl (3S,4S)-4-amino-3-fluoropiperidine-1-carboxylate (CAS 1228185-45-2)
- Methyl 5-methylbenzofuran-3-carboxylate (CAS 93670-27-0)
- 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydrobenzo-1,4-dioxoline (CAS 517874-21-4)
- 3,6-Dimethoxy-1,2-dimethyl-9H-carbazol-4-ol (CAS 108073-62-7)
- 1-(2-Chlorophenyl)-5-(trifluoromethyl)-1H-pyrazole (CAS 1269291-18-0)
- 1-(4-Methylbenzyl)tetrahydropyrimidin-2(1H)-one (CAS 40016-32-8)
- 1-(2,2-Dimethoxyethyl)-5-ethoxy-6-(ethoxycarbonyl)-4-oxo-1,4-dihydropyridine-3-carboxylic acid (CAS 2436537-64-1)
- 1-(3-Bromopropyl)piperidin-4-ol (CAS 113385-30-1)
- (5e)-5-(2,4-dichlorobenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4h-imidazol-4-one 444061-38-5 (CAS 444061-38-5)
- Galanin-Like Peptide (porcine) trifluoroacetate salt (CAS 245114-96-9)
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