4-Butyl-3-propylquinolin-2(1H)-one CAS 5659-23-4
| CAS No. | 5659-23-4 |
| Molecular Formula | C20H34O3 |
| Molecular Weight | 322.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Butyl-3-propylquinolin-2(1H)-one (CAS 5659-23-4), molecular formula C20H34O3 and molecular weight 322.48 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H34O3, 4-Butyl-3-propylquinolin-2(1H)-one contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 322.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C20H34O3 |
| Molecular Weight | 322.48 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Butyl Standards
- (4-Oxo-2-propylquinolin-1(4H)-yl)methyl acetate (CAS 92647-16-0)
- 6-ethyl-2-propylquinolin-4-ol (CAS 1070879-88-7)
- 8-ethyl-2-propylquinolin-4-ol (CAS 1070879-89-8)
- 6-Ethyl-3-propylquinolin-2-amine (CAS 948293-71-8)
- 8-Ethyl-3-propylquinolin-2-amine (CAS 948294-34-6)
- 1-(8-Propylquinolin-2-yl)ethanone (CAS 1245822-63-2)
- 6-methyl-2-propylquinolin-4-ol (CAS 1070879-86-5)
- 8-Methyl-2-propylquinolin-4-ol (CAS 1070879-87-6)
Recommended Standards
- 3,4-Dimethyl-5-propyl-2-furanundecanoic Acid (CAS 57818-41-4)
- 5-(Benzo[d][1,3]dioxol-5-yl)-1,3-dimethyl-7-phenylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione (CAS 70387-38-1)
- 3,4-Dimethyl-5-pentyl-2-furannonanoic Acid (CAS 57818-40-3)
- 8(S)-HETrE (CAS 889573-69-7)
- benzyl N-(2-hydroxy-2-methylpropyl)carbamate (CAS 1215343-52-4)
- Methyl (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-iodobutanoate (CAS 1323995-10-3)
- Methyl 2,6-dibromo-4-isopropylbenzoate (CAS 2586126-83-0)
- 2-Chloro-5-ethyl-4-methylpyridine (CAS 106737-84-2)
- diethyl (tert-Butoxycarbonyl)-L-glutamate (CAS 130696-54-7)
- 5-Iodopyrimidine-4-carbaldehyde (CAS 1260898-20-1)
- n-Cyclopentyl-3-propyl-1,2,4-oxadiazol-5-amine (CAS 1259060-39-3)
- 3-Chloro-2-oxopropyl 2-(N-((4,6-dimethylpyrimidin-2-yl)carbamoyl)sulfamoyl)benzoate (CAS 1781241-33-5)
- 1-(2-(2,4-Dichlorophenyl)-2-oxoethyl)pyridin-1-ium iodide (CAS 246022-02-6)
- Semaglutide impurity 34 (CAS CATO-C4X-222634)
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