7-Methoxy-1-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid CAS 43170-75-8
| CAS No. | 43170-75-8 |
| Molecular Formula | C12H11NO4 |
| Molecular Weight | 233.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 233.22 g/mol gives 7-Methoxy-1-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 7-Methoxy-1-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 43170-75-8), a certified reference material (molecular formula C12H11NO4, MW 233.22 g/mol) for analytical method development and quality control.
7-Methoxy-1-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (C12H11NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 7-Methoxy-1-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 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 | C12H11NO4 |
| Molecular Weight | 233.22 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
- 1-(2-Methoxy-5-methylphenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1038240-97-9)
- 1-(4-Methoxy-3-nitrobenzyl)-1H-imidazole (CAS 120286-42-2)
- 2-(8-Methoxy-2-oxoquinolin-1(2H)-yl)acetic acid (CAS 1225751-49-4)
- 3-Methoxy-4-(3-methyl-1H-1,2,4-triazol-1-yl)benzoic acid (CAS 1243205-02-8)
- N-(7-Methoxy-4-oxo-3,4-dihydroquinazolin-6-yl)acetamide (CAS 130017-60-6)
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Recommended Standards
- 7-Amino-4-coumarincarboxylic Acid Ethyl Ester (CAS 85157-16-0)
- 7'-Methyl-5'-oxo-5'H,7'H-spiro[cyclopropane-1,8'-pyrano[4,3-b]pyridine]-2'-carboxylic acid (CAS 2673370-79-9)
- 6-Methoxy-9-methyl-[1,3]dioxolo[4,5-h]quinolin-8(9H)-one (CAS 477-89-4)
- 8-Ethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 303121-05-3)
- 4-(3,4-Dichlorobenzoyl)-8-methyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326810-30-3)
- 2-(Benzylamino)-4-methylpentan-1-ol (CAS 92111-70-1)
- 2-(Aminomethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetonitrile (CAS 1806779-21-4)
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- 3-(4-amino-3,5-dimethyl-1H-pyrazol-1-yl)propanoic acid,2HCl (CAS 1431964-76-9)
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