6,8-Dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid CAS 111185-88-7
| CAS No. | 111185-88-7 |
| Molecular Formula | C12H11NO5 |
| Molecular Weight | 249.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6,8-Dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid.
6,8-Dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 111185-88-7), molecular formula C12H11NO5 and molecular weight 249.22 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 6,8-Dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 249.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 6,8-Dimethoxy-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 | C12H11NO5 |
| Molecular Weight | 249.22 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.) | 1988 |
| Nitrogen Atoms | 1 |
Related Dimethoxy Standards
- 4,5-dimethoxy-2-(prop-2-ynamido)benzoic acid (CAS 1017038-09-3)
- 6,7-Dimethoxy-4-oxo-1,4-dihydroquinoline-2-carboxylic acid (CAS 122234-41-7)
- 2-(4,5-Dimethoxy-2-nitrophenyl)imidazole (CAS 2070896-33-0)
- 5,7-Dimethoxy-2-methylisoquinoline-1,3,4(2H)-trione (CAS 74826-32-7)
- 5,7-dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 91570-21-7)
- 5,8-Dimethoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid (CAS 842956-45-0)
- 6,7-Dimethoxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid (CAS 5278-37-5)
- 7,8-Dimethoxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid (CAS 800412-45-7)
Recommended Standards
- Benzyl (2,5-dioxoimidazolidin-4-yl)carbamate (CAS 111140-90-0)
- Nifedipine EP Impurity C (E-Isomer) (CAS 111304-29-1)
- 1,1'-(5-Nitro-2,3-dihydrobenzofuran-2,2-diyl)diethanone (CAS 109831-23-4)
- (2Z)-3-{[2-(Methoxycarbonyl)phenyl]carbamoyl}prop-2-enoic Acid (CAS 112881-73-9)
- 3-{[1-(tert-Butoxycarbonyl)piperidin-3-yl]-methoxy}benzoic acid (CAS 1217862-74-2)
- 1-(2-(3,4-Dimethoxyphenyl)pyrazolo[1,5-a]pyrazin-4-yl)piperidine-4-carboxylic acid (CAS 1111058-13-9)
- 1-(Benzo[d]thiazol-2-ylsulfonyl)piperidine-3-carboxylic acid (CAS 1411766-55-6)
- (2R,3S)-3-(3-HYDROXYPROPOXY)-1,4-BIS(PHENYLMETHOXY)-2-BUTANOL 200636-15-3 (CAS 200636-15-3)
- 4-chloro-7-methyl-6-nitro-quinazoline (CAS 872273-86-4)
- N-Allyl-2-(5-methoxy-4-oxo-2-((pyrimidin-2-ylthio)methyl)pyridin-1(4H)-yl)acetamide (CAS 920408-71-5)
- tert-Butyl (1-(3-methoxyphenyl)cyclobutyl)carbamate (CAS 1233180-61-4)
- 4'-Methoxy-[1,1'-biphenyl]-3-thiol (CAS 933674-68-1)
- 1-Methyl-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazine-6-carbonitrile (CAS 1173146-03-6)
- Tirzepatide Impurity 10 (CAS CATO-C4X-324010)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com