6-Ethyl-4-methoxyquinoline-2-carboxylic acid CAS 1355196-14-3
| CAS No. | 1355196-14-3 |
| Molecular Formula | C13H13NO3 |
| Molecular Weight | 231.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 6-Ethyl-4-methoxyquinoline-2-carboxylic acid (C13H13NO3) contains a nitrogen-containing heterocyclic scaffold, 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 231.25 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
6-Ethyl-4-methoxyquinoline-2-carboxylic acid (CAS 1355196-14-3), molecular formula C13H13NO3 and molecular weight 231.25 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 6-Ethyl-4-methoxyquinoline-2-carboxylic acid 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 | C13H13NO3 |
| Molecular Weight | 231.25 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 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.) | 1991 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- Ethyl 6-methoxyquinoline-2-carboxylate (CAS 100393-79-1)
- Ethyl 2-methoxyquinoline-7-carboxylate (CAS 1374258-39-5)
- Ethyl 2-methoxyquinoline-5-carboxylate (CAS 2089318-94-3)
- Ethyl 2-methoxyquinoline-6-carboxylate (CAS 2121932-03-2)
- Ethyl 4-methoxyquinoline-2-carboxylate (CAS 24782-25-0)
- Ethyl 5-methoxyquinoline-3-carboxylate (CAS 2227107-82-4)
- Ethyl 6-methoxyquinoline-3-carboxylate, 97% (CAS 26660-48-0)
- Ethyl 6-methoxyquinoline-4-carboxylate (CAS 5345-57-3)
Recommended Standards
- N-methyl-3-(3-oxo-3,4-dihydroquinoxalin-2-yl)propanamide (CAS 1355173-59-9)
- 2-[(1R,2R)-2-Hydroxycyclopentyl]-isoindole-1,3-dione (CAS 1360145-97-6)
- 2-Isopropyl-1-oxo-1,2-dihydroisoquinoline-4-carboxylic acid (CAS 1352524-64-1)
- Methyl 5-(3-methoxyphenyl)-1H-pyrrole-2-carboxylate (CAS 1361004-05-8)
- 3-Methyl-4-(3-methyl-1-piperidinyl)aniline (CAS 1152866-57-3)
- 2-{[5-(4-tert-Butylphenyl)-4-phenyl-4h-1,2,4-triazol-3-yl]sulfanyl}acetohydrazide (CAS 893726-22-2)
- 3-[(4-chloro-3-methylphenoxy)methyl]-4-methoxybenzaldehyde (CAS 834913-94-9)
- 3-(cyclopent-1-en-1-yl)prop-2-enoic acid (CAS 2931-27-3)
- 4-Cyano-3-(4-thiomethylphenyl)propiophenone (CAS 898780-91-1)
- Diisobutylamine hydrochloride (CAS 18251-82-6)
- 6-Chloro-3-isobutylpyrimidine-2,4(1H,3H)-dione (CAS 1312133-39-3)
- 6-tert-butyl-2,3-dihydropyridazin-3-one (CAS 147849-82-9)
- Vortioxetine Impurity 3 (CAS 960203-41-2)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
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