Ethyl 4-hydroxy-8-methoxyquinoline-2-carboxylate CAS 55895-59-5
| CAS No. | 55895-59-5 |
| Molecular Formula | C13H13NO4 |
| Molecular Weight | 247.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 4-hydroxy-8-methoxyquinoline-2-carboxylate 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.
Ethyl 4-hydroxy-8-methoxyquinoline-2-carboxylate (CAS 55895-59-5) is a high-purity analytical reference standard with the molecular formula C13H13NO4 and a molecular weight of 247.25 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Ethyl 4-hydroxy-8-methoxyquinoline-2-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 247.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C13H13NO4 |
| Molecular Weight | 247.25 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, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1972 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- 2-hydroxy-4-{[(1-methyl-1H-pyrazol-3-yl)methyl]amino}benzoic acid (CAS 1006465-90-2)
- 2-hydroxy-4-{[(1-methyl-1H-pyrazol-5-yl)methyl]amino}benzoic acid (CAS 1006963-39-8)
- 3-Hydroxy-2-(quinazolin-4-ylamino)-butyric acid (CAS 1008675-44-2)
- 5-Hydroxy-2-oxo-2,3-dihydro-1H-[1]benzazephe-4-carboxylic Acid Ethyl Ester (CAS 108993-98-2)
- 2-Hydroxy-4-methoxy-N-(1-methyl-1h-pyrazol-3-yl)benzamide (CAS 1133718-01-0)
- Ethyl 3-hydroxy-8-methyl-2-oxo-1,2-dihydroquinoline-4-carboxylate (CAS 1159706-47-4)
- ethyl 5-[hydroxy(phenyl)methyl]-1H-1,2,4-triazole-3-carboxylate (CAS 1275345-54-4)
- 4-Hydroxy-8-methoxy-6-methylquinoline-3-carbohydrazide (CAS 1315344-68-3)
Recommended Standards
- Ethyl 4-Hydroxy-7-methoxy-3-quinolinecarboxylate (CAS 63463-15-0)
- Ethyl 4-oxo-2-(phenylamino)-4,5-dihydrofuran-3-carboxylate (CAS 58337-16-9)
- Ethyl 4-Hydroxy-6-methoxyquinoline-3-carboxylate (CAS 77156-78-6)
- Ethyl 5-(3-Methoxyphenyl)isoxazole-3-carboxylate (CAS 668971-57-1)
- 1-{imidazo[1,2-a]pyridin-2-yl}methanamine dihydrochloride (CAS 452967-56-5)
- 4-Bromo-1H-imidazole-2-carbonitrile (CAS 120118-03-8)
- 1-(Isoxazol-3-yl)-N-methylmethanamine hydrochloride (CAS 1187927-38-3)
- 3-Chloromethylimidazo[1,2-a]pyridine, 97% (CAS 113855-44-0)
- Tadalafil Impurity 168 (CAS CATO-C4X-1087168)
- Fmoc-p-nitro-Phe-OH (CAS 95753-55-2)
- 5-Bromo-2-methyl-4-nitroaniline (CAS 1142382-25-9)
- 4-(Bromomethyl)-6-fluoro-3,3'-bipyridine (CAS 1227587-91-8)
- 2-(6-Chloro-4-oxoquinazolin-3(4H)-yl)-N-(3-chlorophenyl)acetamide (CAS 618443-40-6)
- Semaglutide impurity 59 (CAS CATO-C4X-222659)
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