4-Methoxy-3,5-dimethylisoxazole CAS 13054-80-3
| CAS No. | 13054-80-3 |
| Molecular Formula | C6H9NO2 |
| Molecular Weight | 127.14 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.
CATO supplies 4-Methoxy-3,5-dimethylisoxazole (CAS 13054-80-3), a certified reference material (molecular formula C6H9NO2, MW 127.14 g/mol) for analytical method development and quality control.
4-Methoxy-3,5-dimethylisoxazole (C6H9NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 4-Methoxy-3,5-dimethylisoxazole 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 | C6H9NO2 |
| Molecular Weight | 127.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
- 4-Methoxy-3-oxo-pentanenitrile (CAS 1028843-13-1)
- 5-Methoxy-1-methyl-1H-pyrazol-4-amine (CAS 1393100-53-2)
- 3-Methoxy-2-(methoxymethyl)acrylonitrile（Mixture of Cis and Trans） (CAS 1608-82-8)
- 4-Methoxy-5-methyl-1H-pyrazol-3-amine (CAS 161285-92-3)
- 3-Methoxy-5-methyl-1H-pyrazol-4-amine (CAS 173682-30-9)
- 2-Methoxy-N-2-propyn-1-ylacetamide (CAS 537705-07-0)
- 3-Methoxy-1-methyl-1H-pyrazol-4-amine (CAS 332069-74-6)
- 3-Methoxy-4,5-dimethylisoxazole (CAS 932-27-4)
Recommended Standards
- (1S,5R)-3-azabicyclo[3.1.0]Hexane-2-carboxylic acid (CAS 1279569-17-3)
- (2-Ethyl-oxazol-5-yl)-methanol (CAS 1312601-18-5)
- 3-Ethoxy-5-methylisoxazole (CAS 127020-20-6)
- 2-Amino-1-(furan-3-yl)ethan-1-ol (CAS 1315059-83-6)
- [2,2'-Bipyridine]-4,4'-dicarbonitrile (CAS 67491-43-4)
- 8-nitro-1,2,3,4-tetrahydroquinoline-5-carbonitrile (CAS 1909337-62-7)
- 2,6-Difluoro-4-pyridinecarboxylic Acid (CAS 88912-23-6)
- Ceftazidime Impurity 104 (CAS CATO-C4X-1212104)
- Diethyl 2,3-dibromosuccinate (CAS 608-82-2)
- N-benzyl-5-hydroxynicotinamide (CAS 1479772-40-1)
- 4-Ethylguaiacol-d5 (CAS 1219803-12-9)
- 4-(Dimethylamino)-N-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)butanamide (CAS 1171891-21-6)
- (S)-2-((4-Methoxyphenyl)sulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (CAS 1212493-61-2)
- Tirzepatide Impurity 61 (CAS CATO-C4X-324061)
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