6-Methyl-2-oxo-1,2-dihydroquinoline-4-carboxylic acid CAS 33274-47-4
| CAS No. | 33274-47-4 |
| Molecular Formula | C11H9NO3 |
| Molecular Weight | 203.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 6-Methyl-2-oxo-1,2-dihydroquinoline-4-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.
6-Methyl-2-oxo-1,2-dihydroquinoline-4-carboxylic acid (CAS 33274-47-4), molecular formula C11H9NO3 and molecular weight 203.19 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6-Methyl-2-oxo-1,2-dihydroquinoline-4-carboxylic acid (C11H9NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 203.19 g/mol, it falls into the medium-molecular-weight range. 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.
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.) | 1966 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 6-Methyl-2-oxo-1,2-dihydroquinoline-3-carboxylic acid (CAS 257862-32-1)
- 6-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 51726-39-7)
- 6-Methoxyquinoline-8-carboxylic acid (CAS 408536-52-7)
- 7-Methoxy-6-methylisoquinoline-5,8-dione (CAS 76177-29-2)
- Ethyl 2-(4-oxo-6,7-dihydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-3(5H)-yl)acetate (CAS 433702-79-5)
- 2-[(2,4-Dimethylphenyl)amino]-2-oxoethyl imidothiocarbamate hydrochloride (CAS 1047620-46-1)
- Benzyl (3,3-dimethyl-1-(pyrrolidin-1-yl)butan-2-yl)(methyl)carbamate (CAS 886363-08-2)
- ((2R,3S,5R)-5-(6-Amino-9H-purin-9-yl)-3-hydroxytetrahydrofuran-2-yl)methyl trihydrogen iminodiphosphate (CAS 119447-19-7)
- Thenalidine (CAS 86-12-4)
- 2-(p-Chlorophenyl)-1-[p-[2-(diethylamino)ethoxy]phenyl]-1-phenyl-ethanol (CAS 47642-02-4)
- 2,2-Dimethylazetidin-3-amine (CAS 149105-89-5)
- (S)-3-Amino-1-(2,4-dimethoxybenzyl)pyrrolidin-2-one hydrochloride (CAS 1951425-27-6)
- 3-(1-((4-Methyl-4H-1,2,4-triazol-3-yl)thio)ethyl)aniline (CAS 1250793-51-1)
- (9-D-Asp) Semaglutide X Sodium salt (CAS CATO-CPTD788617)
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