N'-(4-(Dimethylamino)benzyl)-5-methylisoxazole-3-carbohydrazide CAS 328-33-6
| CAS No. | 328-33-6 |
| Molecular Formula | C14H18N4O2 |
| Molecular Weight | 274.32 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.
N'-(4-(Dimethylamino)benzyl)-5-methylisoxazole-3-carbohydrazide (CAS 328-33-6) is a high-purity analytical reference standard with the molecular formula C14H18N4O2 and a molecular weight of 274.32 g/mol.
Based on its molecular formula C14H18N4O2, N'-(4-(Dimethylamino)benzyl)-5-methylisoxazole-3-carbohydrazide 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 274.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), N'-(4-(Dimethylamino)benzyl)-5-methylisoxazole-3-carbohydrazide 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 | C14H18N4O2 |
| Molecular Weight | 274.32 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
Related N Standards
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