4-Methoxyquinoline-2-carbaldehyde CAS 28673-32-7
| CAS No. | 28673-32-7 |
| Molecular Formula | C11H9NO2 |
| Molecular Weight | 187.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Methoxyquinoline-2-carbaldehyde 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-Methoxyquinoline-2-carbaldehyde (CAS 28673-32-7) is a high-purity analytical reference standard with the molecular formula C11H9NO2 and a molecular weight of 187.19 g/mol.
Structurally, 4-Methoxyquinoline-2-carbaldehyde (C11H9NO2) 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 187.19 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 4-Methoxyquinoline-2-carbaldehyde 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 | C11H9NO2 |
| Molecular Weight | 187.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
Related Methoxyquinoline Standards
- 8-Methoxyquinoline-4-carbaldehyde (CAS 103854-62-2)
- 8-Methoxyquinoline-6-carbaldehyde (CAS 1255527-20-8)
- 6-Methoxyquinoline-8-carbaldehyde (CAS 1268520-98-4)
- 2-Methoxyquinoline-3-carbaldehyde (CAS 139549-06-7)
- 2-Methoxyquinoline-4-carbaldehyde (CAS 893760-88-8)
- 3-Methoxyquinoline-5-carbaldehyde (CAS 881656-52-6)
- 5-Methoxyquinoline-3-carbaldehyde (CAS 363135-59-5)
- 6-Methoxyquinoline-4-carbaldehyde (CAS 4363-94-4)
Recommended Standards
- 4-Fluoro-1-(methylsulfanyl)-2-nitrobenzene (CAS 78227-83-5)
- 4-Methyl-2-oxoquinoline-1(2H)-carbaldehyde (CAS 30408-35-6)
- 4-Ethylidene-2-phenyloxazol-5(4H)-one (CAS 37791-41-6)
- 4-Methyl-2-phenyloxazole-5-carbaldehyde (CAS 953408-85-0)
- 1-(5-Fluoro-1H-indol-3-yl)propan-2-amine (CAS 712-08-3)
- 1-cyclohexyl-1H-indole-3-carboxylic acid (CAS 937698-60-7)
- 2-(tert-Butyl)-7-((2-fluoro-4-formylphenyl)amino)-1H-indole-3-carbaldehyde (CAS 910442-89-6)
- 2,3-Dibromo-6-fluoroacetophenone (CAS 1807055-61-3)
- 2,4-Dichloro-7-methyl-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 2768870-77-3)
- 3,5-Dichloro-1-ethylpyrazin-2(1H)-one (CAS 1187017-35-1)
- 2-(4-Chlorophenyl)-4H-benzo[d][1,3]oxazin-4-one (CAS 18600-52-7)
- 1-(3-Bromo-5-methoxypyridin-2-yl)ethanone (CAS 1379295-29-0)
- 3,5-Dimethylhex-2-enoic acid (CAS 90112-89-3)
- Semaglutide impurity 29 (CAS 110990-08-4)
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