(3E)-3-[(4-Chlorophenyl)imino]-1-[(4-chlorophenyl)methyl]-2,3-dihydro-1H-indol-2-one CAS 478031-79-7
| CAS No. | 478031-79-7 |
| Molecular Formula | C21H14Cl2N2O |
| Molecular Weight | 381.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (3E)-3-[(4-Chlorophenyl)imino]-1-[(4-chlorophenyl)methyl]-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.
(3E)-3-[(4-Chlorophenyl)imino]-1-[(4-chlorophenyl)methyl]-2,3-dihydro-1H-indol-2-one (CAS 478031-79-7), molecular formula C21H14Cl2N2O and molecular weight 381.25 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H14Cl2N2O, (3E)-3-[(4-Chlorophenyl)imino]-1-[(4-chlorophenyl)methyl]-2,3-dihydro-1H-indol-2-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 381.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H14Cl2N2O |
| Molecular Weight | 381.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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