(3E)-1-[(2-Chlorophenyl)methyl]-3-[(3,5-dimethylphenyl)imino]-2,3-dihydro-1H-indol-2-one CAS 478031-71-9
| CAS No. | 478031-71-9 |
| Molecular Formula | C23H19ClN2O |
| Molecular Weight | 374.86 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 (3E)-1-[(2-Chlorophenyl)methyl]-3-[(3,5-dimethylphenyl)imino]-2,3-dihydro-1H-indol-2-one.
(3E)-1-[(2-Chlorophenyl)methyl]-3-[(3,5-dimethylphenyl)imino]-2,3-dihydro-1H-indol-2-one (CAS 478031-71-9), molecular formula C23H19ClN2O and molecular weight 374.86 g/mol, is a CATO reference standard with documented purity and traceability.
(3E)-1-[(2-Chlorophenyl)methyl]-3-[(3,5-dimethylphenyl)imino]-2,3-dihydro-1H-indol-2-one (C23H19ClN2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures (3E)-1-[(2-Chlorophenyl)methyl]-3-[(3,5-dimethylphenyl)imino]-2,3-dihydro-1H-indol-2-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H19ClN2O |
| Molecular Weight | 374.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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 |
Related E Standards
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Recommended Standards
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