4-Ethoxyquinoline-2-carboxylic acid CAS 40609-78-7
| CAS No. | 40609-78-7 |
| Molecular Formula | C12H11NO3 |
| Molecular Weight | 217.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Ethoxyquinoline-2-carboxylic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Ethoxyquinoline-2-carboxylic acid (CAS 40609-78-7), molecular formula C12H11NO3 and molecular weight 217.22 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H11NO3, 4-Ethoxyquinoline-2-carboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 217.22 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 4-Ethoxyquinoline-2-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 | C12H11NO3 |
| Molecular Weight | 217.22 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 chloroform, dichloromethane, ethyl acetate, 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.) | 1968 |
| Nitrogen Atoms | 1 |
Related Ethoxyquinoline Standards
- 6-Ethoxyquinoline-2-carboxylic acid (CAS 104116-70-3)
- 2-Ethoxyquinoline-3-carboxylic acid (CAS 88284-13-3)
- 4-Ethoxyquinoline-3-carboxylic acid (CAS 500579-37-3)
- 6-Ethoxyquinoline-3-carboxylic acid (CAS 948289-86-9)
- 6-Ethoxyquinoline-4-carboxylic acid (CAS 525-39-3)
- 8-Ethoxyquinoline-3-carboxylic acid (CAS 71082-57-0)
- 8-Ethoxyquinoline-5-carboxylic acid (CAS 91569-71-0)
- 8-Ethoxyquinoline-7-carboxylic acid (CAS 62189-87-1)
Recommended Standards
- 4-Benzoyl-1-methylpyrrolidine-2,3-dione (CAS 7460-34-6)
- 4-Amino-6-(4-methoxyphenyl)pyridazin-3(2H)-one (CAS 893760-43-5)
- 4-Ethyl-1-phenyl-1H-1,2,3-triazole-5-carboxylic acid (CAS 558441-00-2)
- 4-amino-5-(benzyloxy)pyrimidin-2(1H)-one (CAS 60722-62-5)
- 3-(Furan-2-yl)-1-methyl-4-propyl-1h-pyrazol-5-amine (CAS 1174306-94-5)
- 5-Amino-3-hydroxypicolinic acid (CAS 856835-10-4)
- 4-(Difluoromethyl)nicotinic acid (CAS 1211590-78-1)
- N-(6-Methoxybenzo[d]thiazol-2-yl)-3-methylbut-2-enamide (CAS 686281-56-1)
- 3-{[(4-fluorophenyl)sulfanyl]methyl}-1-benzofuran-2-carboxylic acid (CAS 1040084-06-7)
- Ethyl 1-(aminomethyl)-3-propylcyclobutane-1-carboxylate (CAS 1463047-10-0)
- 3-(4-Chlorophenyl)-6-methoxy-1,3,5-triazine-2,4(1H,3H)-dione (CAS 40943-38-2)
- 5-(2,4-Dichlorophenyl)isoxazole (CAS 260973-78-2)
- Ethane-1,2-diyl bis(dihydrogen phosphate) (CAS 763-25-7)
- Fibrinopeptide A, human TFA (CAS 61533-47-9)
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