4-Hydroxy-8-methoxyquinoline-2-carboxylic Acid CAS 2929-14-8
| CAS No. | 2929-14-8 |
| Molecular Formula | C11H9NO4 |
| Molecular Weight | 219.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Hydroxy-8-methoxyquinoline-2-carboxylic Acid (CAS 2929-14-8) is a high-purity analytical reference standard with the molecular formula C11H9NO4 and a molecular weight of 219.19 g/mol.
Structurally, 4-Hydroxy-8-methoxyquinoline-2-carboxylic Acid (C11H9NO4) 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 219.19 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 4-Hydroxy-8-methoxyquinoline-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 | C11H9NO4 |
| Molecular Weight | 219.19 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.) | 1957 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
- 2-(7-Hydroxy-2-oxo-2h-chromen-4-yl)acetamide (CAS 101999-45-5)
- 4-Hydroxy-7-methoxyquinoline-6-carboxylic acid (CAS 1190837-18-3)
- N-(4-hydroxy-2-oxo-2H-chromen-3-yl)acetamide (CAS 13948-45-3)
- Methyl 4-hydroxy-1-oxo-1,2-dihydroisoquinoline-3-carboxylate (CAS 13972-97-9)
- 3-hydroxy-7-methoxyquinoline-4-carboxylic acid (CAS 1487292-95-4)
- 5-Hydroxy-3-phenylisoxazole-4-carboxylic acid (CAS 15969-44-5)
- 2-Hydroxy-8-methoxyquinoline-3-carboxylic acid (CAS 169321-92-0)
- 5-Hydroxy-2-methyl-1-oxo-1,2-dihydroisoquinoline-6-carboxylic acid (CAS 1783406-37-0)
Recommended Standards
- N-(7-hydroxy-2-oxo-2H-chromen-3-yl)acetamide (CAS 79418-42-1)
- 29588-83-8 2-Isoindolineacetic acid, 1,3-dioxo-alpha-methyl-, delta- (CAS 29588-83-8)
- N-(1,3-Dioxo-3,4-dihydro-1H-2-benzopyran-7-yl)acetamide (CAS 41471-17-4)
- 8-Methoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid 8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 35975-69-0 (CAS 35975-69-0)
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- N-(3-Nitrophenyl)-2-{[4-({[(3-nitrophenyl)carbamoyl]methyl}sulfanyl)butyl]sulfanyl}acetamide (CAS 301194-27-4)
- 6-Fluoro-5-iodoquinoline (CAS 1420790-80-2)
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