3-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-7-hydroxy-2-(trifluoromethyl)-4h-chromen-4-one CAS 170511-53-2
| CAS No. | 170511-53-2 |
| Molecular Formula | C18H11F3O5 |
| Molecular Weight | 364.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-7-hydroxy-2-(trifluoromethyl)-4h-chromen-4-one (CAS 170511-53-2), a certified reference material (molecular formula C18H11F3O5, MW 364.27 g/mol) for analytical method development and quality control.
3-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-7-hydroxy-2-(trifluoromethyl)-4h-chromen-4-one (C18H11F3O5) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. 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. 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.
Physical & Chemical Properties
| Molecular Formula | C18H11F3O5 |
| Molecular Weight | 364.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | F-containing |
Related Dihydrobenzo Standards
- 2-((5-(2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)-1,3,4-oxadiazol-2-yl)thio)-1-morpholinoethan-1-one (CAS 851129-98-1)
- ((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)sulfonyl)-l-phenylalanine (CAS 301848-43-1)
- (2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)(2-iodophenyl)methanone (CAS 727421-75-2)
- (2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)(3-iodophenyl)methanone (CAS 878969-65-4)
- N-(5,6-dihydrobenzo[h]quinazolin-2-yl)-2-(p-tolylthio)acetamide (CAS 339278-12-5)
- N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-4-(2,6-dimethylphenyl)piperazine-1-carboxamide (CAS 865659-68-3)
- 4,4'-(1,5-Dihydrobenzo[1,2-d:4,5-d']diimidazole-2,6-diyl)dibenzonitrile (CAS 2247996-19-4)
- N-(5,6-dihydrobenzo[h]quinazolin-2-yl)-3-(trifluoromethyl)benzamide (CAS 306979-35-1)
Recommended Standards
- 1-(Tert-butyl)-3-((5-chloro-3-(chloromethyl)pyridin-2-yl)methyl)-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (CAS 1455358-12-9)
- Diethyl 2-(5-amino-4-nitro-2-(trifluoromethyl)phenyl)malonate (CAS 1951444-66-8)
- 4-Bromo-5-methoxy-2-methyl-N-((tetrahydrofuran-2-yl)methyl)benzenesulfonamide (CAS 898650-92-5)
- (E)-[(2,6-Dichlorophenyl)methoxy]({1-[2-(4-methoxyphenyl)cyclopropyl]ethylidene})amine (CAS 478262-66-7)
- 2-(3-((Methylamino)methyl)piperidin-1-yl)ethan-1-ol (CAS 915919-93-6)
- 2-(4-Benzylpiperazin-1-yl)-6-chlorobenzonitrile (CAS 872119-86-3)
- 2-Benzylpyrrolidine-2-carboxylic acid (CAS 72518-40-2)
- 1-(4-Hydroxy-3-methoxy-2-nitrophenyl)ethan-1-one (CAS 1260785-45-2)
- 764-99-8 ABM90Y2G95 Diethylene glycol divinyl ether Ethene, 1,1'-(oxybis(2,1-ethanediyloxy))bis- Ether, bis(2-vinyloxyethyl) 1,1'-(Oxybis(ethyleneoxy))diethylene 4-01-00-02399 (Beilstein Handbook Reference) Bis(2-(vinyloxy)ethyl) ether BRN 1752316 Divinyl ether diethylenglykolu [Czech] Divinylcarbitol Dvedeg [Russian] EINECS 212-133-3 NSC 6117 3,6,9-Trioxaundeca-1,10-diene Divinyl ether diethylenglykolu Dvedeg UNII-ABM90Y2G95 EC 212-133-3 (CAS 764-99-8)
- 2-(4-Chlorophenoxy)-5-fluoroaniline (CAS 15212-01-8)
- (2-Cyclopropyl-6-methylphenyl)boronic acid (CAS 2225179-11-1)
- 2-Isopropyl-4,5,6,7-tetrahydrobenzofuran (CAS 84521-68-6)
- 1-(4-Aminophenyl)-4-piperidinone (CAS 170011-70-8)
- (D-Ala2)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 444073-04-5)
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