5-Methoxy-2,3-dihydroquinolin-4(1H)-one CAS 61999-48-2
| CAS No. | 61999-48-2 |
| Molecular Formula | C10H11NO2 |
| Molecular Weight | 177.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Methoxy-2,3-dihydroquinolin-4(1H)-one (CAS 61999-48-2) is a high-purity analytical reference standard with the molecular formula C10H11NO2 and a molecular weight of 177.20 g/mol.
Based on its molecular formula C10H11NO2, 5-Methoxy-2,3-dihydroquinolin-4(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 177.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C10H11NO2 |
| Molecular Weight | 177.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
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- 7-Methoxy-1,2-dihydroisoquinolin-3(4H)-one (CAS 1023300-22-2)
- 6-Methoxy-1-methyl-1H-indol-5-ol (CAS 1028694-86-1)
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Recommended Standards
- 5-Methoxy-1-methylindolin-2-one (CAS 7699-22-1)
- 5-Methoxy-2,7-dimethylbenzo[d]oxazole (CAS 500877-06-5)
- 5-Isopropylpyrrolo[2,1-f][1,2,4]triazin-4(1H)-one (CAS 888720-51-2)
- 5-Methoxy-3,4-dihydroquinolin-2(1H)-one (CAS 30557-06-3)
- tert-Butyl ((1-(2-aminoacetyl)pyrrolidin-2-yl)methyl)(isopropyl)carbamate (CAS 1353972-99-2)
- 4-(Cyclopropylmethyl)-2-methylphenol (CAS 1243415-23-7)
- Capstone product A (CAS 80475-32-7)
- tert-Butyl 3,4,5-trihydroxybenzoate (CAS 50888-95-4)
- 5-Carboxy-2-chlorophenylboronic Acid (CAS 913835-75-3)
- 5-Amino-3-isopentyl-1-methylpyrimidine-2,4(1h,3h)-dione (CAS 1411519-57-7)
- 5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-2'-fluoro-5-methyluridine (CAS 133324-02-4)
- Irinotecan Impurity 52-D5 (CAS 718612-51-2)
- Boc-(R, S)-3-amino-2-phenylpropionic acid (CAS 67098-56-0)
- Des-Lys20(Side Chain)-Semaglutide (CAS CATO-C4X-2226280)
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