N-(4-(4,5-dimethoxy-1,3-dioxoisoindolin-2-yl)phenyl)acetamide CAS 337933-01-4
| CAS No. | 337933-01-4 |
| Molecular Formula | C18H16N2O5 |
| Molecular Weight | 340.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, N-(4-(4,5-dimethoxy-1,3-dioxoisoindolin-2-yl)phenyl)acetamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 340.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
N-(4-(4,5-dimethoxy-1,3-dioxoisoindolin-2-yl)phenyl)acetamide (CAS 337933-01-4), molecular formula C18H16N2O5 and molecular weight 340.33 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C18H16N2O5 |
| Molecular Weight | 340.33 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.) | 2025 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- N-(1-cyanoethyl)-2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindoline-5-carboxamide (CAS 2629201-62-1)
- Perylene-3,9-dicarboxylic acid (CAS 6364-19-8)
- Methyl (2r,3s)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-3-(3-nitrophenyl)propanoate (CAS 475977-55-0)
- sec-Butyl 2-cyano-3-(5-(4-nitrophenyl)furan-2-yl)acrylate (CAS 301339-45-7)
- Boc-Glu(Obzl)-OMe (CAS 59279-58-2)
- Sodium tetradec-2-ene-1-sulfonate (CAS 13513-45-6)
- N-Pentylformamide (CAS 2591-79-9)
- Ethyl ((4-methoxyphenyl)carbamothioyl)glycinate (CAS 320422-84-2)
- Tert-butyl (6-ethoxy-3-nitropyridin-2-yl)carbamate (CAS 1220039-67-7)
- ethyl 2-[(3-amino-1,1,1-trifluoropropan-2-yl)sulfanyl]acetate hydrochloride (CAS 2060008-56-0)
- N-(benzo[d]thiazol-6-yl)propionamide (CAS 922920-21-6)
- Methyl 4-Acetylcyclohexanecarboxylate (CAS 120077-76-1)
- 4-Chloro-2-phenylpyridine (CAS 57311-18-9)
- Semaglutide impurity 65 (CAS CATO-C4X-222665)
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