5,6,7-Trimethoxy-2-phenylquinolin-4(1H)-one CAS 159188-35-9
| CAS No. | 159188-35-9 |
| Molecular Formula | C18H17NO4 |
| Molecular Weight | 311.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 5,6,7-Trimethoxy-2-phenylquinolin-4(1H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 311.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5,6,7-Trimethoxy-2-phenylquinolin-4(1H)-one (CAS 159188-35-9) is a high-purity analytical reference standard with the molecular formula C18H17NO4 and a molecular weight of 311.33 g/mol.
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 | C18H17NO4 |
| Molecular Weight | 311.33 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, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 1 |
Related Trimethoxy Standards
- 5,7,4'-Trimethoxy-4-phenylcoumarin (CAS 74512-60-0)
- 5,7,8-Trimethoxy-2-phenyl-4H-chromen-4-one (CAS 23050-38-6)
- (E)-1,2,3-trimethoxy-5-(4-nitrostyryl)benzene (CAS 134029-66-6)
- Trimethoxy(7-oxabicyclo[4.1.0]heptan-3-yl)silane (CAS 17139-83-2)
- (1r)-9,21,26-trimethoxy-15-methyl-7,24-dioxa-15,31-diazaheptacyclo[23.6.2.23,6.18,12.014,19.018,23.028,32]hexatriaconta-3,5,8(34),9,11,18,20,22,25,27,32,35-dodecaen-22-ol(non-preferred name) 56159-70-7 KST-1A6045 (CAS 56159-70-7)
- 3,4,5-Trimethoxy-N-(4-methoxyphenyl)benzamide (CAS 742-15-4)
- 2,5,8-Trimethoxy-4-methylquinoline (CAS 66570-51-2)
- 3,4,5-Trimethoxy-d9-2'-cyano-di-hydrocinnamaldehyde Dimethylacetal (CAS 1185144-63-1)
Recommended Standards
- methyl 4-(benzyloxy)-5-methoxy-1H-indole-2-carboxylate (CAS 158046-61-8)
- 1-(((Benzyloxy)carbonyl)amino)-2,3-dihydro-1H-indene-1-carboxylic acid (CAS 166586-72-7)
- (S)-2-CBZ-1,2,3,4-TETRAHYDROISOQUINOLINE-1-CARBOXYLIC ACID (CAS 151004-90-9)
- 3-(4-Methoxyphenyl)-3-(1-oxoisoindolin-2-yl)propanoic acid (CAS 167886-73-9)
- 1-(5-Chloro-7-methylbenzofuran-2-yl)-2-methylpropan-1-amine (CAS 1489492-55-8)
- (R)-8-methylchroman-4-amine (CAS 1213065-29-2)
- 1-(Pyridin-2-ylmethyl)pyrrolidine-3-carbaldehyde (CAS 1447962-39-1)
- 3-Bromo-2-(3,3,3-trifluoropropyloxyl)benzonitrile (CAS 1779127-90-0)
- 2-Chloro-1-(chloromethoxy)-4-nitrobenzene (CAS 1512240-61-7)
- 883545-66-2 4-[(E)-(4-Methyl-2-nitrophenyl)diazenyl]morpholine DTXSID50649842 (CAS 883545-66-2)
- (4-((Furan-2-ylmethoxy)methyl)phenyl)boronic acid (CAS 1256358-66-3)
- 7-Methyl-5-phenyl-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid (CAS 1782246-85-8)
- 7-fluoro-2-methyl-1-(propan-2-yl)-1H-1,3-benzodiazole (CAS 1541657-23-1)
- Glucagon receptor antagonists-2 (CAS 202917-18-8)
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