(R)-2-((S)-2-(2-(2-(1,3-Dioxoisoindolin-2-yl)ethoxy)acetamido)propanamido)pentanedioic acid CAS 142489-47-2
| CAS No. | 142489-47-2 |
| Molecular Formula | C20H23N3O9 |
| Molecular Weight | 449.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(R)-2-((S)-2-(2-(2-(1,3-Dioxoisoindolin-2-yl)ethoxy)acetamido)propanamido)pentanedioic acid (CAS 142489-47-2) is a high-purity analytical reference standard with the molecular formula C20H23N3O9 and a molecular weight of 449.41 g/mol.
Based on its molecular formula C20H23N3O9, (R)-2-((S)-2-(2-(2-(1,3-Dioxoisoindolin-2-yl)ethoxy)acetamido)propanamido)pentanedioic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 449.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C20H23N3O9 |
| Molecular Weight | 449.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 3 |
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