Ethyl (S)-3-(4-aminophenyl)-2-(1,3-dioxoisoindolin-2-yl)propanoate CAS 74743-23-0
| CAS No. | 74743-23-0 |
| Molecular Formula | C19H18N2O4 |
| Molecular Weight | 338.36 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 Ethyl (S)-3-(4-aminophenyl)-2-(1,3-dioxoisoindolin-2-yl)propanoate.
Ethyl (S)-3-(4-aminophenyl)-2-(1,3-dioxoisoindolin-2-yl)propanoate (CAS 74743-23-0) is a high-purity analytical reference standard with the molecular formula C19H18N2O4 and a molecular weight of 338.36 g/mol.
Ethyl (S)-3-(4-aminophenyl)-2-(1,3-dioxoisoindolin-2-yl)propanoate (C19H18N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 Ethyl (S)-3-(4-aminophenyl)-2-(1,3-dioxoisoindolin-2-yl)propanoate 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 | C19H18N2O4 |
| Molecular Weight | 338.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 2 |
Recommended Standards
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- Semaglutide impurity 84 (CAS CATO-C4X-222684)
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