3-(4-Nitrophenyl)-5-phenylisoxazole CAS 31108-56-2
| CAS No. | 31108-56-2 |
| Molecular Formula | C15H10N2O3 |
| Molecular Weight | 266.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3-(4-Nitrophenyl)-5-phenylisoxazole (CAS 31108-56-2), a certified reference material (molecular formula C15H10N2O3, MW 266.25 g/mol) for analytical method development and quality control.
Based on its molecular formula C15H10N2O3, 3-(4-Nitrophenyl)-5-phenylisoxazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 266.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 3-(4-Nitrophenyl)-5-phenylisoxazole 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 | C15H10N2O3 |
| Molecular Weight | 266.25 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 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.) | 1965 |
| Nitrogen Atoms | 2 |
Related Nitrophenyl Standards
- 2-(1-(2-Nitrophenyl)-1H-pyrazol-5-yl)pyridine (CAS 1269291-81-7)
- 3-(1-(4-Nitrophenyl)-1H-pyrazol-5-yl)pyridine (CAS 1269291-88-4)
- 2-(1-(4-Nitrophenyl)-1H-pyrazol-5-yl)pyridine (CAS 1269292-16-1)
- 4-(1-(2-Nitrophenyl)-1H-pyrazol-5-yl)pyridine (CAS 1269293-00-6)
- 3-(1-(2-Nitrophenyl)-1H-pyrazol-5-yl)pyridine (CAS 1269293-33-5)
- 4-(1-(4-Nitrophenyl)-1H-pyrazol-5-yl)pyridine (CAS 1269293-94-8)
- EThyl 3-[(4-nitrophenyl)formamido]propanoate (CAS 172899-47-7)
- 1-(4-nitrophenyl)-1H-indole-3-carbaldehyde (CAS 65439-88-5)
Recommended Standards
- 3-(3-Nitrophenyl)-5-phenylisoxazole (CAS 31609-82-2)
- 3-(5-Formylfuran-2-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde (CAS 956769-55-4)
- 3-(2-Oxo-2H-chromen-3-yl)benzoic acid (CAS 443292-41-9)
- 3-(5-Phenyl-1,3,4-oxadiazol-2-yl)benzoic acid (CAS 3601-62-5)
- N-(1-Benzyl-piperidin-3-yl)-2-chloro-acetamide (CAS 1354002-39-3)
- 1-(Chloromethyl)-4-(cyclohexyloxy)benzene (CAS 13485-83-1)
- 9-Chloro-5-methoxy-3-methylacridine (CAS 88914-99-2)
- 2-(Aminomethyl)-3-cyclopropoxypyridine-4-sulfonamide (CAS 1243313-67-8)
- 5-Chloro-3-methylpyrazolo[1,5-a]pyrimidine (CAS 2143554-22-5)
- Tribenzothiophene (CAS 30796-92-0)
- Furan-2-yl(phenyl)methanamine (CAS 83948-38-3)
- 2-(((1-((Benzyloxy)carbonyl)piperidin-4-yl)methyl)(isopropyl)amino)acetic acid (CAS 1353971-99-9)
- Scopolamine Impurity 7 (CAS 76822-34-9)
- MLCK inhibitor peptide 18 (CAS 224579-74-2)
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