N-Butyl-4-methoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxamide CAS 921835-61-2
| CAS No. | 921835-61-2 |
| Molecular Formula | C17H21N3O3 |
| Molecular Weight | 315.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including N-Butyl-4-methoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxamide.
CATO supplies N-Butyl-4-methoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxamide (CAS 921835-61-2), a certified reference material (molecular formula C17H21N3O3, MW 315.37 g/mol) for analytical method development and quality control.
N-Butyl-4-methoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxamide (C17H21N3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), N-Butyl-4-methoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxamide 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 | C17H21N3O3 |
| Molecular Weight | 315.37 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Recommended Standards
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- N'-[(1Z)-(4-Methoxyphenyl)methylidene]-2,5-bis(2,2,2-trifluoroethoxy)benzohydrazide (CAS 477864-03-2)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
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