6,7-Dimethoxyquinoline-5,8-dione CAS 59962-97-9
| CAS No. | 59962-97-9 |
| Molecular Formula | C14H19N3O4S |
| Molecular Weight | 325.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6,7-Dimethoxyquinoline-5,8-dione (CAS 59962-97-9), molecular formula C14H19N3O4S and molecular weight 325.38 g/mol, is a CATO reference standard with documented purity and traceability.
6,7-Dimethoxyquinoline-5,8-dione (C14H19N3O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone 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 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.
As a certified reference material (CRM), 6,7-Dimethoxyquinoline-5,8-dione 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 | C14H19N3O4S |
| Molecular Weight | 325.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Dimethoxyquinoline Standards
- 3-Benzyl-2,6-dimethoxyquinoline (CAS 918518-76-0)
- Ethyl 5,8-dimethoxyquinoline-3-carboxylate (CAS 71083-24-4)
- Ethyl 6,7-Dimethoxyquinoline-3-carboxylate (CAS 5278-39-7)
- Methyl 3,8-dimethoxyquinoline-6-carboxylate (CAS 2721376-44-7)
- Methyl 4,8-Dimethoxyquinoline-2-carboxylate (CAS 76995-87-4)
- 6,7-Dimethoxyquinoline-2-carboxylic acid (CAS 122234-49-5)
- 2,6-Dimethoxyquinoline-3-carboxylic acid (CAS 929343-44-2)
- 4,6-dimethoxyquinoline-2-carboxylic acid (CAS 52144-22-6)
Recommended Standards
- 5-Phenyl-1-tosyl-1H-pyrrole-3-carbaldehyde (CAS 881673-31-0)
- 6-Fluoro-2-(4-methoxybenzyl)-7-propylisoquinolin-1(2H)-one (CAS 923022-57-5)
- 5-Methoxy-4-[(4-methoxyphenyl)sulfanyl]-2-(pyridin-2-yl)pyrimidine (CAS 321433-00-5)
- 6-Methyl-2-((3-nitrobenzylidene)amino)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile (CAS 331962-76-6)
- (4-Methyloxazol-2-yl)methanol (CAS 1240603-14-8)
- (S)-2-Amino-3-(1H-imidazol-5-yl)propanamide (CAS 7621-14-9)
- Ethyl 2-Methyloxazole-4-carboxylate (CAS 10200-43-8)
- N,N-dimethyl-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 412032-33-8)
- 2-(1,3-Oxazol-4-yl)acetonitrile (CAS 1065073-51-9)
- 6-methoxy-1,2-dihydroquinazolin-2-one (CAS 850424-10-1)
- (2Z,4E)-Ethyl 5-(diethylamino)-2-(phenylsulfonyl)penta-2,4-dienoate (CAS 160306-22-9)
- 2-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoindoline-1,3-dione (CAS 1187591-39-4)
- 2-(2-Iodo-6-nitrophenyl)acetonitrile (CAS 105003-97-2)
- Osteoblast Activating Peptide (mouse, rat) (H-7262.0500) (CAS 1222950-80-2)
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