methyl 4-oxo-1,4-dihydroquinoline-2-carboxylate CAS 7101-89-5
| CAS No. | 7101-89-5 |
| Molecular Formula | C11H9NO3 |
| Molecular Weight | 203.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
methyl 4-oxo-1,4-dihydroquinoline-2-carboxylate (C11H9NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies methyl 4-oxo-1,4-dihydroquinoline-2-carboxylate (CAS 7101-89-5), a certified reference material (molecular formula C11H9NO3, MW 203.19 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), methyl 4-oxo-1,4-dihydroquinoline-2-carboxylate 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 | C11H9NO3 |
| Molecular Weight | 203.19 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.) | 1959 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Methyl 4-hydroxyquinoline-8-carboxylate (CAS 860206-84-4)
- Methyl 4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 61707-79-7)
- Methyl 4-hydroxyquinoline-6-carboxylate (CAS 948571-56-0)
- Methyl 4-oxo-1,4-dihydroquinoline-7-carboxylate (CAS 863785-96-0)
- N-(4-Chlorophenyl)-2-fluorobenzamide (CAS 784-65-6)
- Cistanoside D (CAS 94492-21-4)
- (3R)-3-Amino-2-hydroxyhexanamide hydrochloride (CAS 2434605-67-9)
- N1-(Acridin-9-yl)-N4-methylbenzene-1,4-diamine (CAS 75776-00-0)
- 5-Hydroxy-2-(methylthio)benzenesulfonamide (CAS 1243369-83-6)
- 6-Amino-2-methyl-3-phenyl-3,4-dihydroquinazolin-4-one (CAS 961-12-6)
- 1-Phenylpiperidin-4-one hydrochloride (CAS 6328-93-4)
- Adenosine Sulfate Salt (CAS 64503-27-1)
- methyl 2-[(1-methoxy-1-oxopropan-2-yl)amino]-3-nitrobenzoate (CAS 1644599-14-3)
- Semaglutide Impurity 143 (CAS CATO-C4X-2226143)
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