Ethyl 1-(4-methoxyphenyl)-4,5-dioxo-2-phenylpyrrolidine-3-carboxylate CAS 401941-23-9
| CAS No. | 401941-23-9 |
| Molecular Formula | C20H19NO5 |
| Molecular Weight | 353.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 1-(4-methoxyphenyl)-4,5-dioxo-2-phenylpyrrolidine-3-carboxylate (CAS 401941-23-9), a certified reference material (molecular formula C20H19NO5, MW 353.37 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Ethyl 1-(4-methoxyphenyl)-4,5-dioxo-2-phenylpyrrolidine-3-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 353.37 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.
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 | C20H19NO5 |
| Molecular Weight | 353.37 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- N-(3-(3-(4-Methoxyphenyl)-6-oxopyridazin-1(6H)-yl)propyl)furan-2-carboxamide (CAS 1021224-39-4)
- 4-(5-(4-Methoxyphenyl)oxazol-2-yl)-9H-fluoren-9-one (CAS 313367-92-9)
- 3-(2-Methoxyphenyl)-N-(3-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-74-4)
- 3-(2-Methoxyphenyl)-N-(4-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-75-5)
- 3-(3-Methoxyphenyl)-N-(4-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-52-8)
- N-(2-Methoxyphenyl)-3-(3-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-48-2)
- N-(2-Methoxyphenyl)-3-(4-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-14-2)
- N-(3-Methoxyphenyl)-3-(4-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-15-3)
Recommended Standards
- 9,10-Dichlorostearic Acid (CAS 5829-48-1)
- Ethyl 2-((4-oxo-3-phenyl-4H-pyrazino[1,2-a]pyrimidin-2-yl)oxy)butanoate (CAS 21271-35-2)
- 6-(3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-yl)-1-isopropyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 890647-78-6)
- Ethyl 2-[3-methyl-5-oxo-4-(4-phenoxyphenyl)-4,5-dihydro-1H-1,2,4-triazol-1-yl]acetate (CAS 860789-24-8)
- Benzyl (2-(5-aminopyrimidin-2-yl)ethyl)carbamate (CAS 944898-50-4)
- Ethyl 5-methoxy-1H-indazole-3-carboxylate (CAS 865887-16-7)
- 6,6'-Bis(tributylstannyl)-2,2'-bipyridine (CAS 1005036-05-4)
- 1,4-Dioxa-10-azadispiro[4.2.4.2]tetradecane (CAS 60874-99-9)
- (Z)-Ethyl 2-(piperidin-3-ylidene)-acetate hydrochloride (CAS 1358679-89-6)
- 5-(4-Ethoxyphenoxy)-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde (CAS 882221-21-8)
- 3-(4-Butylphenyl)-1H-pyrazol-5-amine hydrochloride (CAS 1031793-88-0)
- n-(2-Methoxybenzyl)-2-methylbutan-2-amine (CAS 932260-77-0)
- (S)-4-Nitrophenyl 2-(((benzyloxy)carbonyl)amino)-3-hydroxypropanoate 1676-91-1 (CAS 1676-91-1)
- D-[Arg]30-Semaglutide (CAS CATO-C4X-222653)
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