5-Methyl-N-(4-nitrobenzylidene)isoxazol-3-amine CAS 112633-39-3
| CAS No. | 112633-39-3 |
| Molecular Formula | C11H9N3O3 |
| Molecular Weight | 231.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Methyl-N-(4-nitrobenzylidene)isoxazol-3-amine 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.
5-Methyl-N-(4-nitrobenzylidene)isoxazol-3-amine (CAS 112633-39-3), molecular formula C11H9N3O3 and molecular weight 231.21 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Methyl-N-(4-nitrobenzylidene)isoxazol-3-amine (C11H9N3O3) is characterized by an amino-acid-derived structure, an amide 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C11H9N3O3 |
| Molecular Weight | 231.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 3-((2,4,5-Trifluorobenzyl)oxy)pyrrolidine (CAS 1121636-42-7)
- 1-(4-(Trifluoromethyl)benzyl)azetidin-3-ol (CAS 1146157-62-1)
- 5-(7-Methoxy-1-benzofuran-2-yl)-1,3,4-oxadiazol-2-amine (CAS 1105193-69-8)
- 1-methyl-3-(4-nitrophenyl)-1H-pyrazole-4-carbaldehyde (CAS 1152508-77-4)
- Diethyl 2-methyl-2-nitromalonate (CAS 65612-01-3)
- Litronesib Racemate (CAS 546111-97-1)
- 4-Ethynyl-1-phenyl-1H-pyrazole (CAS 51294-73-6)
- 2-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole-3-carbaldehyde (CAS 1578484-85-1)
- 3-Fluoro-N-hydroxy-4-methoxybenzimidamide (CAS 934605-95-5)
- n-((6-Methoxynaphthalen-2-yl)methyl)-1h-imidazole-1-carboxamide (CAS 1087792-51-5)
- Captopril (CAS 62571-86-2)
- Hexane-1,6-diyl bis(3-(3-(2H-benzo[d][1,2,3]triazol-2-yl)-5-(tert-butyl)-4-hydroxyphenyl)propanoate) (CAS 84268-08-6)
- 1-(1-Benzylpiperidin-4-yl)-2-phenylethanol (CAS 145006-98-0)
- Semaglutide Impurity 128 (CAS 2490269-78-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com