Ethyl 7-chloro-3-oxo-3,4-dihydroquinoxaline-2-carboxylate CAS 4829-67-8
| CAS No. | 4829-67-8 |
| Molecular Formula | C11H9ClN2O3 |
| Molecular Weight | 252.65 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 7-chloro-3-oxo-3,4-dihydroquinoxaline-2-carboxylate.
CATO supplies Ethyl 7-chloro-3-oxo-3,4-dihydroquinoxaline-2-carboxylate (CAS 4829-67-8), a certified reference material (molecular formula C11H9ClN2O3, MW 252.65 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H9ClN2O3, Ethyl 7-chloro-3-oxo-3,4-dihydroquinoxaline-2-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 252.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 7-chloro-3-oxo-3,4-dihydroquinoxaline-2-carboxylate 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 | C11H9ClN2O3 |
| Molecular Weight | 252.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
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Recommended Standards
- Ethyl 6-chloro-4-oxo-3,4-dihydroquinazoline-2-carboxylate (CAS 263010-06-6)
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- Ethyl 6-chloro-4-oxo-1,4-dihydro-1,5-naphthyridine-3-carboxylate (CAS 66093-16-1)
- Ethyl 7-chloro-6-oxo-5,6-dihydro-1,5-naphthyridine-3-carboxylate (CAS 2855938-43-9)
- 1-(5-(1H-imidazol-1-yl)-2-nitrophenyl)piperazine dihydrochloride (CAS 1177093-15-0)
- 1-(3-amino-4-chlorophenyl)propan-1-one (CAS 56721-09-6)
- Methyl 2-(4-(chloromethyl)phenyl)acetate (CAS 72770-09-3)
- Ethyl 4-bromo-6-methylquinoline-3-carboxylate (CAS 1242260-73-6)
- Methyl 2-(pyrrolidin-3-yl)thiazole-5-carboxylate hydrochloride (CAS 2137717-09-8)
- 1-(Chloromethyl)-1-methylcyclopropane (CAS 10523-77-0)
- Dihydroxymaleic acid (CAS 526-84-1)
- n-(1-Benzylpiperidin-4-yl)furan-2-carboxamide (CAS 132864-14-3)
- 3-Ethylazetidin-3-amine (CAS 866432-22-6)
- Des-Ile27-Tirzepatide (CAS CATO-CPTD788946)
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