6-Methylquinoline-2-carboxylic acid CAS 15733-84-3
| CAS No. | 15733-84-3 |
| Molecular Formula | C11H9NO2 |
| Molecular Weight | 187.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 6-Methylquinoline-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.
6-Methylquinoline-2-carboxylic acid (CAS 15733-84-3), molecular formula C11H9NO2 and molecular weight 187.19 g/mol, is a CATO reference standard with documented purity and traceability.
6-Methylquinoline-2-carboxylic acid (C11H9NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
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.
Physical & Chemical Properties
| Molecular Formula | C11H9NO2 |
| Molecular Weight | 187.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
Related Methylquinoline Standards
- 7-Methylquinoline-5-carboxylic acid (CAS 1016257-78-5)
- 5-Methylquinoline-2-carboxylic acid (CAS 103856-59-3)
- 4-Methylquinoline-3-carboxylic acid (CAS 103907-10-4)
- 6-Methylquinoline-5-carboxylic acid (CAS 1211488-26-4)
- 5-Methylquinoline-4-carboxylic acid (CAS 1474034-01-9)
- 3-Methylquinoline-4-carboxylic acid (CAS 1873-51-4)
- 4-Methylquinoline-5-carboxylic acid (CAS 1935554-00-9)
- 3-Methylquinoline-7-carboxylic acid (CAS 1956328-32-7)
Recommended Standards
- 3-(4,4-Difluorocyclohexyl)-3-oxopropanenitrile (CAS 1546403-48-8)
- 1-(4-hydroxyquinolin-6-yl)ethan-1-one (CAS 15900-88-6)
- 2-(M-tolyl)oxazole-4-carbaldehyde (CAS 154136-89-7)
- 1',2'-Dihydrospiro[cyclobutane-1,3'-indole]-2',3-dione (CAS 1603068-17-2)
- 3-(Methanesulfonylmethyl)benzoic acid (CAS 261924-94-1)
- Ethyl (2’-Hydroxy-3’-benzyloxybenzoyl)acetate (CAS 1796932-84-7)
- ((3S,4R)-4-Fluoro-1-methylpyrrolidin-3-yl)methanol (CAS 2454397-93-2)
- (3-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(3-chloro-5-fluorophenyl)methanone (CAS 898762-13-5)
- 3-(4-Oxo-5-(thiophen-2-ylmethylene)-2-thioxothiazolidin-3-yl)-N-(m-tolyl)propanamide (CAS 308292-24-2)
- 2-Chloro-4-iodo-5-pentafluoroethylpyridine (CAS 1204234-31-0)
- 2-(3,5-Diflrorophenyl)-pyridin-3-amine (CAS 1368936-48-4)
- 2-Bromo-3-(2-cyano-3-fluorophenyl)-1-propene (CAS 951893-82-6)
- 4-Chloro-5-(1-(4-chlorophenyl)propoxy)-2-ethylpyridazin-3(2H)-one (CAS 88093-60-1)
- Semaglutide impurity 91 (CAS CATO-C4X-222691)
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