4-Hydroxy-1,3-dimethylquinolin-2(1H)-one CAS 32606-02-3
| CAS No. | 32606-02-3 |
| Molecular Formula | C11H11NO2 |
| Molecular Weight | 189.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Hydroxy-1,3-dimethylquinolin-2(1H)-one (CAS 32606-02-3), molecular formula C11H11NO2 and molecular weight 189.21 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H11NO2, 4-Hydroxy-1,3-dimethylquinolin-2(1H)-one contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 189.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C11H11NO2 |
| Molecular Weight | 189.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
- 2-Hydroxy-5-methyl-N-(prop-2-yn-1-yl)benzamide (CAS 1019128-10-9)
- 2-Hydroxy-3-methyl-N-(prop-2-yn-1-yl)benzamide (CAS 1019451-83-2)
- 4-Hydroxy-7-methoxy-2-methylquinoline (CAS 103624-90-4)
- 1-(2-Hydroxy-1-methyl-1H-indol-3-yl)ethanone (CAS 124043-91-0)
- N’-hydroxy-1-methyl-1H-indole-3-carboximidamide (CAS 125818-00-0)
- N'-hydroxy-1-methyl-1H-indole-4-carboximidamide (CAS 1597528-05-6)
- 2-hydroxy-1-(1H-indol-3-yl)propan-1-one (CAS 18112-46-4)
- 6-Hydroxy-1,4-dimethylquinolin-2(1H)-one (CAS 1843-88-5)
Recommended Standards
- 4-Hydrazinyl-7-methoxyquinoline (CAS 49612-23-9)
- 4-Hydroxy-1,6-dimethylquinolin-2(1H)-one (CAS 54675-24-0)
- 4-Hydrazinyl-6-methoxyquinoline (CAS 49612-21-7)
- 4-Hydroxy-7,8-dimethyl-2(1H)-quinolinone (CAS 54675-03-5)
- 2-(((Benzyloxy)carbonyl)amino)-3-(1-(tert-butoxycarbonyl)piperidin-4-yl)propanoic acid (CAS 195877-38-4)
- 1-(2,5-dichlorophenyl)-5-methyl-N-propyl-1H-1,2,4-triazole-3-carboxamide (CAS 338398-38-2)
- BENZOFURAN-6-SULFONYL CHLORIDE (CAS 1314920-96-1)
- tert-Butyl 3,7-diazabicyclo[4.2.0]octane-3-carboxylate hydrochloride (CAS 2173992-36-2)
- Methyl 3-(2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinyl)benzoate (CAS 893737-33-2)
- 2-(((Tetrahydrofuran-2-yl)methoxy)methyl)benzaldehyde (CAS 1443325-95-8)
- 2-Amino-7-(4-oxo-4-(pyridin-3-yl)butyl)-1H-purin-6(7H)-one (CAS 502507-75-7)
- 4-(3-Nitrophenyl)-1,2,3-thiadiazole-5-carboxylic acid (CAS 1481665-11-5)
- Piperidine-3,4-diol hydrochloride (CAS 88512-14-5)
- Semaglutide impurity 73 (CAS CATO-C4X-222673)
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