6,8-Dimethyl-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid CAS 36991-59-0
| CAS No. | 36991-59-0 |
| Molecular Formula | C11H10N2O3 |
| Molecular Weight | 218.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6,8-Dimethyl-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid (C11H10N2O3) 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).
6,8-Dimethyl-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid (CAS 36991-59-0), molecular formula C11H10N2O3 and molecular weight 218.21 g/mol, is a CATO reference standard with documented purity and traceability.
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-Dimethyl-4-oxo-1,4-dihydrocinnoline-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 | C11H10N2O3 |
| Molecular Weight | 218.21 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.) | 1967 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 2-(Difluoromethyl)-3-iodo-5-(trifluoromethyl)pyridine-6-carboxaldehyde (CAS 1805552-89-9)
- 5,6,7,8-Tetrahydroquinoline-8-carbothioamide (CAS 53400-60-5)
- 3-Ethoxyspiro[3.3]heptan-1-ol (CAS 1394041-68-9)
- 1-(3-Bromo-5-chloropyridin-2-yl)ethan-1-ol (CAS 1374651-62-3)
- 3,3-Thiodipropanol (CAS 10595-09-2)
- Salbutamol Impurity 58 (CAS CATO-C4X-117658)
- 1-(2,3,4-Trifluorophenyl)propan-2-one (CAS 1305324-39-3)
- Peptide 431 (CAS CATO-CPTD788431)
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