1-Ethyl-2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylic acid CAS 744227-07-4
| CAS No. | 744227-07-4 |
| Molecular Formula | C11H10N2O4 |
| Molecular Weight | 234.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Ethyl-2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylic acid (C11H10N2O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 1-Ethyl-2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylic acid (CAS 744227-07-4), a certified reference material (molecular formula C11H10N2O4, MW 234.21 g/mol) for analytical method development and quality control.
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), 1-Ethyl-2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylic 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 | C11H10N2O4 |
| Molecular Weight | 234.21 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, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 2-(4-Methyl-2,3-dioxo-3,4-dihydroquinoxalin-1(2H)-yl)acetic acid (CAS 1031628-34-8)
- Methyl 2-(2,4-dioxo-3,4-dihydroquinazolin-1(2H)-yl)acetate (CAS 112342-46-8)
- 2-(2,4-Dioxo-1,2,3,4-tetrahydroquinazolin-3-yl)acetohydrazide (CAS 1206154-66-6)
- ethyl 2,4-dioxo-1,2,3,4-tetrahydroquinazoline-6-carboxylate (CAS 1207175-71-0)
- 2-[(3s)-2,5-dioxo-2,3,4,5-tetrahydro-1h-1,4-benzodiazepin-3-yl]acetic acid (CAS 1217715-92-8)
- (R)-2-(2,5-dioxo-2,3,4,5-tetrahydro-1H-benzo[e][1,4]diazepin-3-yl)acetic acid (CAS 1217717-66-2)
- Ethyl 2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylate (CAS 1268865-77-5)
- 4-{1,3-dioxo-1h,2h,3h-pyrrolo[3,4-c]pyridin-2-yl}butanoic acid (CAS 1322604-76-1)
Recommended Standards
- 1-Acetyl-6-nitro-2,3-dihydroquinolin-4(1H)-one (CAS 57445-27-9)
- 2-((1-Methyl-4-oxo-1,4-dihydroquinazolin-2-yl)oxy)acetic acid (CAS 88267-83-8)
- 1-[(3-methoxyphenyl)methyl]imidazolidine-2,4,5-trione (CAS 92764-08-4)
- 2-((3-Methyl-1,2,4-oxadiazol-5-yl)methoxy)benzoic acid (CAS 937669-91-5)
- 1-[2-(4-bromophenyl)acetyl]piperidine-3-carboxylic acid (CAS 953720-42-8)
- N-benzyl-2-(trifluoromethoxy)aniline (CAS 1019503-09-3)
- (Z)-{[4-(morpholin-4-yl)-3-nitrophenyl]methylidene}amino 4-fluorobenzoate (CAS 339019-89-5)
- 4-Nitrophenyl 2-acetamido-2-deoxy-4-6-O-p-methoxybenzylidene-α-D-galactopyranoside (CAS 59868-86-9)
- Furo[2,3-c]pyridine-7-carbaldehyde (CAS 193750-93-5)
- 2-Amino-N-cyclopentyl-4,5-dimethylthiophene-3-carboxamide (CAS 590355-67-2)
- 2,3,4-Trichloro-N-(2-hydroxyethyl)benzenesulfonamide (CAS 1206143-16-9)
- 2-Chloro-1-(4-chloro-2-methylphenyl)ethan-1-one (CAS 60988-75-2)
- 3,5-Dimethyl-1-(2,2,2-trifluoroethyl)-1H-pyrazole-4-carboxylic acid (CAS 1006462-32-3)
- Peptide Impurity 24 (CAS CATO-CPTD788824)
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