2,3-Dimethoxy-9H-xanthen-9-one CAS 42833-49-8
| CAS No. | 42833-49-8 |
| Molecular Formula | C15H12O4 |
| Molecular Weight | 256.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2,3-Dimethoxy-9H-xanthen-9-one (CAS 42833-49-8), a certified reference material (molecular formula C15H12O4, MW 256.25 g/mol) for analytical method development and quality control.
2,3-Dimethoxy-9H-xanthen-9-one (C15H12O4) contains a flavonoid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), 2,3-Dimethoxy-9H-xanthen-9-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H12O4 |
| Molecular Weight | 256.25 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
Related Dimethoxy Standards
- 3,8-Dimethoxy-6H-benzo[c]chromen-6-one (CAS 1680-85-9)
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- 1-(2',4'-Dimethoxy-[1,1'-biphenyl]-4-yl)ethan-1-one (CAS 178055-99-7)
- 2,2-Dimethoxy-2-phenylacetophenone (CAS 24650-42-8)
- 2-{[(4,5-dimethoxy-2-methylphenyl)methyl]sulfanyl}acetic acid (CAS 850020-76-7)
- 1,2-Dimethoxy-4-(pentafluoroethyl)benzene (CAS 1429056-40-5)
- 3,4-Dimethoxy-2-((methoxymethoxy)methylbenzeneboronic acid, 97% (CAS 220956-32-1)
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Recommended Standards
- 2-(Naphthalen-1-yl)-5-oxotetrahydrofuran-3-carboxylic acid (CAS 412012-16-9)
- 2,5-Difluoro-3-(1,3-dioxan-2-yl)propiophenone (CAS 884504-26-1)
- 2-(Benzo[d][1,3]dioxol-5-ylmethoxy)benzaldehyde (CAS 842957-76-0)
- 2-[(Difluoromethyl)sulfanyl]-4-(4-fluorophenyl)pyrimidine (CAS 477854-93-6)
- 5-Sulfamoylthiophene-2-carboxylic acid (CAS 7353-87-9)
- (3-(1-(4-(2-((tert-Butyldimethylsilyl)oxy)ethyl)piperazin-1-yl)ethyl)phenyl)boronic acid (CAS 1704097-03-9)
- Tert-butyl (2-amino-3-fluorophenyl)carbamate (CAS 954238-78-9)
- N,N-dimethyl-4-(((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)amino)benzenesulfonamide (CAS 305368-06-3)
- 2-(2,4-Dichlorophenyl)-3-(ethylsulfonyl)-1H-pyrrole (CAS 1707568-03-3)
- 3-(1H-Imidazol-2-yl)-1,2,4,5-tetrazine (CAS 927200-13-3)
- 2-Chloro-N-(4-(morpholinosulfonyl)phenyl)acetamide (CAS 35959-60-5)
- ETHYL 3-CHLORO-4-CYANOBENZOATE (CAS 1228376-15-5)
- Atopaxar hydrobromide, >98% (HPLC) (CAS 474550-69-1)
- Liraglutide (14-31)TFA Salt (CAS CATO-C4X-19927)
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