3-Ethyl-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid CAS 523990-83-2
| CAS No. | 523990-83-2 |
| Molecular Formula | C11H10N2O4 |
| Molecular Weight | 234.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Ethyl-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid (CAS 523990-83-2) is a high-purity analytical reference standard with the molecular formula C11H10N2O4 and a molecular weight of 234.21 g/mol.
Structurally, 3-Ethyl-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid (C11H10N2O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 234.21 g/mol, it falls into the medium-molecular-weight range. 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 3-Ethyl-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid 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 | 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.) | 1984 |
| 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
- 3-Ethoxy-5-(4-nitrophenyl)-1H-1,2,4-triazole (CAS 62036-19-5)
- 3-Ethyl-5-nitro-1H-indole-2-carboxylic acid (CAS 446830-63-3)
- 3-[(5-methyl-1,2,4-oxadiazol-3-yl)methoxy]benzoic acid (CAS 923682-07-9)
- 4-(2,4-dioxohexahydropyrimidin-1-yl)-2-hydroxy-benzaldehyde (CAS 2766179-94-4)
- 5-(3,4-Dimethoxybenzyl)-4-(4-fluorophenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (CAS 883019-45-2)
- L-Asparagine Hydrate-D3 (CAS 2483831-59-8)
- Atrazine-Desisopropyl (CAS 1007-28-9)
- 3-(2-methoxyethoxy)pyrrolidine hydrochloride (CAS 1607326-92-0)
- Methyl 1,3,6-trimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 832746-71-1)
- Barium metaphosphate (CAS 13762-83-9)
- 6-Iodopteridin-4-ol (CAS 1260859-55-9)
- 2-(3-Fluoro-phenyl)-oxazol-4-yl-methylamine hydrochloride (CAS 1965310-48-8)
- 2-(3-(Tert-butyl)-5-fluorophenyl)-1,3-dioxolane (CAS 1707580-48-0)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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