4-oxo-1,4-dihydro-[1,6]naphthyridine-3-carboxylic acid ethyl ester CAS 6861-83-2
| CAS No. | 6861-83-2 |
| Molecular Formula | C11H10N2O3 |
| Molecular Weight | 218.21 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.
4-oxo-1,4-dihydro-[1,6]naphthyridine-3-carboxylic acid ethyl ester (CAS 6861-83-2) is a high-purity analytical reference standard with the molecular formula C11H10N2O3 and a molecular weight of 218.21 g/mol.
Based on its molecular formula C11H10N2O3, 4-oxo-1,4-dihydro-[1,6]naphthyridine-3-carboxylic acid ethyl ester contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 218.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 4-oxo-1,4-dihydro-[1,6]naphthyridine-3-carboxylic acid ethyl ester 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 | C11H10N2O3 |
| Molecular Weight | 218.21 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.) | 1958 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- (2R,3S,4R,5R)-2,5-Bis(hydroxymethyl)pyrrolidine-3,4-diol (CAS 172823-15-3)
- Methyl 2-((1H-pyrrolo[2,3-b]pyridin-6-yl)oxy)-4-fluorobenzoate (CAS 1235865-75-5)
- 2-(4-Fluorophenoxy)acetonitrile (CAS 24115-20-6)
- Pyrido[3,4-e][1,2,4]triazin-5(6H)-one (CAS 145675-25-8)
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- Bortezomib Impurity 63 (CAS 1375004-38-8)
- 2-(Benzo[d][1,3]dioxol-5-yl)-6,8-dibromoquinoline (CAS 861206-55-5)
- Semaglutide impurity 94 (CAS CATO-C4X-222694)
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