4756AE 51726-78-4 7-Acetyl-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid C12H9NO4 CAS 51726-78-4
| CAS No. | 51726-78-4 |
| Molecular Formula | C12H9NO4 |
| Molecular Weight | 231.20 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 4756AE 51726-78-4 7-Acetyl-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid C12H9NO4 (CAS 51726-78-4), a certified reference material (molecular formula C12H9NO4, MW 231.20 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H9NO4, 4756AE 51726-78-4 7-Acetyl-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid C12H9NO4 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 231.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO manufactures 4756AE 51726-78-4 7-Acetyl-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid C12H9NO4 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 | C12H9NO4 |
| Molecular Weight | 231.20 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 1 |
Recommended Standards
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com