7-Methoxy-2-(4-methoxyphenyl)quinoline-4-carboxylic acid CAS 116734-20-4
| CAS No. | 116734-20-4 |
| Molecular Formula | C18H15NO4 |
| Molecular Weight | 309.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7-Methoxy-2-(4-methoxyphenyl)quinoline-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.
7-Methoxy-2-(4-methoxyphenyl)quinoline-4-carboxylic acid (CAS 116734-20-4) is a high-purity analytical reference standard with the molecular formula C18H15NO4 and a molecular weight of 309.32 g/mol.
Based on its molecular formula C18H15NO4, 7-Methoxy-2-(4-methoxyphenyl)quinoline-4-carboxylic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 309.32 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).
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 | C18H15NO4 |
| Molecular Weight | 309.32 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
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Recommended Standards
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- 3-Ethyl-4-(thiophen-2-yl)-1h-pyrazol-5-amine (CAS 955584-79-9)
- Methyl 6-((3,5-dimethoxyphenyl)amino)-5-oxo-1,2,3,5-tetrahydroindolizine-8-carboxylate (CAS 612065-21-1)
- 4-(2,2,2-trifluoroethoxy)quinoline-2-carboxylic acid (CAS 1281584-65-3)
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- (8R,9S,10R,13S,14S)-13-methyl-1,2,8,9,10,11,12,14,15,16-deca 13209-45-5 (CAS 13209-45-5)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
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