2-(4-(3-(4-Chlorophenyl)-6-oxopyridazin-1(6H)-yl)butanamido)benzamide CAS 946321-13-7
| CAS No. | 946321-13-7 |
| Molecular Formula | C21H19ClN4O3 |
| Molecular Weight | 410.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(4-(3-(4-Chlorophenyl)-6-oxopyridazin-1(6H)-yl)butanamido)benzamide 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.
2-(4-(3-(4-Chlorophenyl)-6-oxopyridazin-1(6H)-yl)butanamido)benzamide (CAS 946321-13-7) is a high-purity analytical reference standard with the molecular formula C21H19ClN4O3 and a molecular weight of 410.85 g/mol.
Structurally, 2-(4-(3-(4-Chlorophenyl)-6-oxopyridazin-1(6H)-yl)butanamido)benzamide (C21H19ClN4O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 410.85 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C21H19ClN4O3 |
| Molecular Weight | 410.85 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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