| CAS No. | 338391-78-9 |
| Molecular Formula | C25H23ClFN5O |
| Molecular Weight | 463.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (3Z)-1-{[4-(3-chlorophenyl)piperazin-1-yl]methyl}-3-[2-(4-fluorophenyl)hydrazin-1-ylidene]-2,3-dihydro-1H-indol-2-one.
(3Z)-1-{[4-(3-chlorophenyl)piperazin-1-yl]methyl}-3-[2-(4-fluorophenyl)hydrazin-1-ylidene]-2,3-dihydro-1H-indol-2-one (CAS 338391-78-9), molecular formula C25H23ClFN5O and molecular weight 463.93 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (3Z)-1-{[4-(3-chlorophenyl)piperazin-1-yl]methyl}-3-[2-(4-fluorophenyl)hydrazin-1-ylidene]-2,3-dihydro-1H-indol-2-one (C25H23ClFN5O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 463.93 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.
As a certified reference material (CRM), (3Z)-1-{[4-(3-chlorophenyl)piperazin-1-yl]methyl}-3-[2-(4-fluorophenyl)hydrazin-1-ylidene]-2,3-dihydro-1H-indol-2-one 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.
| Molecular Formula | C25H23ClFN5O |
| Molecular Weight | 463.93 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 5 |