3-[6-(ethoxycarbonyl)-4-ethyl-3-oxo-3,4-dihydroquinoxalin-2-yl]propanoic acid CAS 726153-69-1
| CAS No. | 726153-69-1 |
| Molecular Formula | C16H18N2O5 |
| Molecular Weight | 318.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-[6-(ethoxycarbonyl)-4-ethyl-3-oxo-3,4-dihydroquinoxalin-2-yl]propanoic acid (CAS 726153-69-1) is a high-purity analytical reference standard with the molecular formula C16H18N2O5 and a molecular weight of 318.32 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 3-[6-(ethoxycarbonyl)-4-ethyl-3-oxo-3,4-dihydroquinoxalin-2-yl]propanoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 318.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-[6-(ethoxycarbonyl)-4-ethyl-3-oxo-3,4-dihydroquinoxalin-2-yl]propanoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H18N2O5 |
| Molecular Weight | 318.32 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related ethoxycarbonyl Standards
- 3-(Ethoxycarbonyl)-5-methyl-1-[4-(propan-2-yl)phenyl]-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264043-63-1)
- 2-(3-(Ethoxycarbonyl)-5-(4-methoxyphenyl)-2-methyl-1H-pyrrol-1-yl)acetic acid (CAS 93616-97-8)
- 1-{[5-(ethoxycarbonyl)furan-2-yl]sulfonyl}pyrrolidine-2-carboxylic acid (CAS 1241830-03-4)
- 3-(3-(Ethoxycarbonyl)-5-(4-fluorophenyl)-2-methyl-1H-pyrrol-1-yl)propanoic acid (CAS 879329-76-7)
- 1-(6-(Ethoxycarbonyl)-5,6,7,8-tetrahydropyrido[4,3-c]pyridazin-3-yl)-1H-imidazole-4-carboxylic acid (CAS 1713463-23-0)
- 2-(3-Ethoxycarbonyl-phenyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (CAS 1373223-31-4)
- Methyl 3-[4-(ethoxycarbonyl)-3-fluorophenyl]-2-fluorobenzoate (CAS 1381944-56-4)
- 3-(Ethoxycarbonyl)-1-(2-methoxy-5-methylphenyl)-5-methyl-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264041-51-1)
Recommended Standards
- 3,3'-(1,4-Phenylene)bis(1-(furan-2-yl)prop-2-en-1-one) (CAS 27242-80-4)
- 3-Hydroxy-1-(4-hydroxy-3-methoxyphenyl)-2-(2-methoxyphenoxy)propan-1-one (CAS 22317-34-6)
- 3-(3,4-Dimethoxyphenyl)-1-(2,4,6-trihydroxyphenyl)propan-1-one (CAS 89294-53-1)
- 3-Hydroxy-2-(((4-methoxy-2-nitrophenyl)imino)methyl)-5,5-dimethylcyclohex-2-en-1-one (CAS 202459-41-4)
- (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-(4-hydroxyphenoxy)phenyl)propanoic acid (CAS 1354485-04-3)
- Ethyl 3-(3,4-dimethoxyphenyl)-1H-1,2,4-triazole-5-carboxylate (CAS 1416345-49-7)
- N-(4-Chlorophenyl)-2-Fluoroacetamide (CAS 404-41-1)
- N-benzyl-1-(1-methyl-1H-imidazol-2-yl)methanamine (CAS 474448-87-8)
- 1,4-Dihydroxy-5,8-bis((2-(methyl(phenyl)amino)ethyl)amino)anthracene-9,10-dione (CAS 70945-58-3)
- Ethyl 2-acetoxy-2-(diethoxyphosphoryl)acetate (CAS 162246-77-7)
- (S)-Methyl 3-amino-4-methylpentanoate acetate (CAS 679789-27-6)
- 1-((6-Chloropyridin-3-yl)methyl)-4-methyl-1,4-diazepane (CAS 1038221-47-4)
- 5-Amino-6-methylpyridine-3,4-dicarbonitrile (CAS 71058-42-9)
- CGMP Dependent Kinase Inhibitor Peptide (CAS 82801-73-8)
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