2-((3,4-Dimethoxyphenyl)sulfonyl)-3-phenylisoxazol-5(2H)-one CAS 303987-10-2
| CAS No. | 303987-10-2 |
| Molecular Formula | C17H15NO6S |
| Molecular Weight | 361.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 2-((3,4-Dimethoxyphenyl)sulfonyl)-3-phenylisoxazol-5(2H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 361.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 2-((3,4-Dimethoxyphenyl)sulfonyl)-3-phenylisoxazol-5(2H)-one (CAS 303987-10-2), a certified reference material (molecular formula C17H15NO6S, MW 361.37 g/mol) for analytical method development and quality control.
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), 2-((3,4-Dimethoxyphenyl)sulfonyl)-3-phenylisoxazol-5(2H)-one 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 | C17H15NO6S |
| Molecular Weight | 361.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dimethoxyphenyl Standards
- 4-(3,4-Dimethoxyphenyl)-6-(3-methoxypropyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione (CAS 1021093-78-6)
- 3-[(2,3-dimethoxyphenyl)methylidene]-1H,2H,3H-cyclopenta[b]quinoline-9-carboxylic acid (CAS 750617-49-3)
- 2-(2,6-Dimethoxyphenyl)-1-tosylpyrrolidine (CAS 1355175-80-2)
- (E)-2-(3,4-dimethoxyphenyl)-3-oxobutanal O-(4-chlorobenzyl) oxime (CAS 478260-69-4)
- 3-(3,4-Dimethoxyphenyl)-5-((2-fluorobenzyl)thio)-4H-1,2,4-triazol-4-amine (CAS 577963-05-4)
- 3-(3,4-Dimethoxyphenyl)-5-((3-fluorobenzyl)thio)-4H-1,2,4-triazol-4-amine (CAS 676642-55-0)
- 3-(3,4-Dimethoxyphenyl)-5-((4-fluorobenzyl)thio)-4H-1,2,4-triazol-4-amine (CAS 577791-50-5)
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Recommended Standards
- 1-(5-(2-Hydroxy-5-methoxy-3-nitrophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)ethan-1-one (CAS 876941-46-7)
- 2-Amino-5-((2-(sulfooxy)ethyl)sulfonyl)benzenesulfonic acid (CAS 42986-22-1)
- Zimlovisertib (CAS 1817626-54-2)
- 3-(4-Fluoro-3-phenoxyphenyl)-5-(4-methoxyphenyl)isoxazole (CAS 920761-24-6)
- N-(2-Bromopropyl)acetamide (CAS 1531297-23-0)
- (S)-(-)-Pindolol (CAS 26328-11-0)
- 2-(Difluoromethoxy)-7-hydroxybenzothiazole (CAS 1261457-94-6)
- methyl rac-(2R,3R)-2-(1H-pyrazol-4-yl)oxane-3-carboxylate (CAS 2059909-54-3)
- (7R,8aS)-7-amino-2-methylhexahydropyrrolo[1,2-a]pyrazine-1,4-dione dihydrochloride (CAS 1609388-54-6)
- (1R,3r,5S)-8-Azabicyclo[3.2.1]octan-3-ylmethanol (CAS 1257512-65-4)
- Halcinonide Impurity 8 (CAS CATO-C4X-27958)
- C6 NBD Glucosylceramide (CAS 94885-03-7)
- 5,6,7,8-Tetrahydroquinolin-7-ol (CAS 160240-07-3)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
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