7-(3,4-Dimethoxyphenyl)-4-hydroxy-9-(trifluoromethyl)thieno[2,3-b:4,5-b']dipyridin-2(1H)-one CAS 924845-19-2
| CAS No. | 924845-19-2 |
| Molecular Formula | C19H13F3N2O4S |
| Molecular Weight | 422.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-(3,4-Dimethoxyphenyl)-4-hydroxy-9-(trifluoromethyl)thieno[2,3-b:4,5-b']dipyridin-2(1H)-one (C19H13F3N2O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
7-(3,4-Dimethoxyphenyl)-4-hydroxy-9-(trifluoromethyl)thieno[2,3-b:4,5-b']dipyridin-2(1H)-one (CAS 924845-19-2), molecular formula C19H13F3N2O4S and molecular weight 422.38 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C19H13F3N2O4S |
| Molecular Weight | 422.38 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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- 2-(3,4-Dimethoxyphenyl)-4-methyl-N-[3-(trifluoromethyl)phenyl]-1,3-thiazole-5-carboxamide (CAS 400080-52-6)
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Recommended Standards
- 2-(1-Methyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-6-(phenylsulfonyl)pyrazolo[1,5-a]pyrimidin-7-amine (CAS 955964-67-7)
- Catechin-7-O-D-xylopyranoside (CAS 42830-48-8)
- Methyl 3-(2-(2-oxo-2-((2-(trifluoromethyl)phenyl)amino)acetyl)-1H-pyrrol-1-yl)thiophene-2-carboxylate (CAS 477857-79-7)
- (2R,3S)-7-(((2S,3R,4R)-3,4-Dihydroxy-4-(hydroxymethyl)tetrahydrofuran-2-yl)oxy)-2-(3,4-dihydroxyphenyl)chroman-3,5-diol (CAS 81905-13-7)
- (3Ar,5r,6s,6ar)-5-[(Azepan-1-yl)methyl]-2,2-dimethyl-tetrahydro-2h-furo[2,3-d][1,3]dioxol-6-ol (CAS 175229-82-0)
- 3,3-dimethyl-1-phenylbutan-2-amine hydrochloride (CAS 160204-35-3)
- 3-Fluoro-4-methyl-5-(trifluoromethyl)aniline (CAS 1706430-24-1)
- Pyridine ((2R,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl phosphate (CAS 64108-84-5)
- 1-Phenylisoquinolin-3(2H)-one (CAS 23832-72-6)
- (1S,2R,3R,4S)-cyclohex-5-ene-1,2,3,4-tetraol (CAS 138258-55-6)
- 3,5-Dihydroxybenzohydrazide (CAS 7732-32-3)
- (S)-Fmoc-2-Aminooct-7-ynoic acid (CAS 1097192-06-7)
- 2-(4-fluorophenyl)ethane-1-sulfonamide (CAS 405219-37-6)
- Palmitoyl Hexapeptide-12 (CAS 171263-26-6)
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