(3E)-3-[(3,4-Dimethylphenyl)imino]-1-(propan-2-yl)-2,3-dihydro-1H-indol-2-one CAS 338414-84-9
| CAS No. | 338414-84-9 |
| Molecular Formula | C19H20N2O |
| Molecular Weight | 292.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3E)-3-[(3,4-Dimethylphenyl)imino]-1-(propan-2-yl)-2,3-dihydro-1H-indol-2-one (CAS 338414-84-9) is a high-purity analytical reference standard with the molecular formula C19H20N2O and a molecular weight of 292.37 g/mol.
Structurally, (3E)-3-[(3,4-Dimethylphenyl)imino]-1-(propan-2-yl)-2,3-dihydro-1H-indol-2-one (C19H20N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 292.37 g/mol, it falls into the medium-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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H20N2O |
| Molecular Weight | 292.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related E Standards
- (3E)-3-[(3,5-Dimethylphenyl)imino]-1-(propan-2-yl)-2,3-dihydro-1H-indol-2-one (CAS 338414-83-8)
- N-(2,4-Dimethylphenyl)-2-(3,5-dioxothiomorpholino)acetamide (CAS 868215-08-1)
- N-(2,5-Dimethylphenyl)-2-(3,5-dioxothiomorpholino)acetamide (CAS 868215-07-0)
- N-(3,5-Dimethylphenyl)-2-(3,5-dioxothiomorpholino)acetamide (CAS 868215-09-2)
- N-(2,5-Dimethylphenyl)quinoline-2-carbothioamide (CAS 430469-78-6)
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- 3-(2,4-dimethylphenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid (CAS 956386-17-7)
- 3-(3,4-Dimethylphenyl)-1-phenyl-1h-pyrazole-4-carboxylic acid (CAS 956753-11-0)
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