6-Ethoxy-5-nitroquinoline-4-carboxylic acid CAS 89267-26-5
| CAS No. | 89267-26-5 |
| Molecular Formula | C12H10N2O5 |
| Molecular Weight | 262.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 6-Ethoxy-5-nitroquinoline-4-carboxylic acid (CAS 89267-26-5), a certified reference material (molecular formula C12H10N2O5, MW 262.22 g/mol) for analytical method development and quality control.
6-Ethoxy-5-nitroquinoline-4-carboxylic acid (C12H10N2O5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), 6-Ethoxy-5-nitroquinoline-4-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 | C12H10N2O5 |
| Molecular Weight | 262.22 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 2 |
Related Ethoxy Standards
- 4-[Ethoxy(oxo)acetyl]-3-phenyl-1,2,3-oxadiazol-3-ium-5-olate (CAS 1103497-68-2)
- 2-Ethoxy-6-nitroquinoline-4-carboxylic acid (CAS 89267-24-3)
- 3-(4-Ethoxy-3-(trifluoromethyl)phenyl)propanoic acid (CAS 1206593-34-1)
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- 5-(4-Ethoxy-3-methoxyphenyl)-1h-pyrazole-3-carboxylic acid (CAS 1038829-48-9)
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- 3-Ethoxy-4-((1-methyl-1H-tetrazol-5-yl)methoxy)benzaldehyde (CAS 1373247-71-2)
- 4-Ethoxy-6-((4-methoxyphenyl)amino)-1,3,5-triazin-2(1H)-one (CAS 62808-05-3)
Recommended Standards
- 6,7-Diacetoxy-4(3h)-quinazolinone (CAS 765249-38-5)
- Ethyl (E)-2-cyano-2-(2-(3-nitrophenyl)hydrazono)acetate (CAS 30006-52-1)
- 6-(Benzo[d][1,3]dioxol-5-yl)-2-oxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid (CAS 860610-20-4)
- Ethyl 2-(4-nitrophenyl)oxazole-4-carboxylate (CAS 78979-63-2)
- 2-Bromo-3-methylnaphthalene (CAS 939-15-1)
- 1-(4-Nitrophenyl)-1h-1,2,3-triazole-4-carbaldehyde (CAS 113934-26-2)
- 1-(3,4-Dichlorobenzyl)-3,5-dimethyl-4-nitro-1H-pyrazole (CAS 333444-53-4)
- Zirconyl nitrate solution (CAS 13826-66-9)
- (S)-(2-Methyl-4-((4-(trifluoromethyl)phenyl)sulfonyl)piperazin-1-yl)(2-methylpyridin-3-yl)methanone hydrochloride (CAS 1204535-44-3)
- 4-Chloro-5-(difluoromethyl)-6-fluoropyridin-3-ol (CAS 1804670-71-0)
- 2,7-Diazaspiro[4.4]nonan-3-one (CAS 1226550-00-0)
- (S)-2-Aminobut-3-ynoic acid (CAS 73537-09-4)
- 1-Methyl-2-phenyl-3-((trifluoromethyl)sulfonyl)-1H-benzo[d]imidazol-3-ium trifluoromethanesulfonate (CAS 2459375-76-7)
- Semaglutide impurity 48 (CAS CATO-C4X-222648)
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