3,6-Bis(4-ethoxyphenyl)furo[3,2-b]furan-2,5-dione CAS 55506-38-2
| CAS No. | 55506-38-2 |
| Molecular Formula | C22H18O6 |
| Molecular Weight | 378.37 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 3,6-Bis(4-ethoxyphenyl)furo[3,2-b]furan-2,5-dione (CAS 55506-38-2), a certified reference material (molecular formula C22H18O6, MW 378.37 g/mol) for analytical method development and quality control.
Based on its molecular formula C22H18O6, 3,6-Bis(4-ethoxyphenyl)furo[3,2-b]furan-2,5-dione contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 378.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C22H18O6 |
| Molecular Weight | 378.37 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
Related Bis Standards
- N-(4-Ethoxyphenyl)-3-(5-(3-nitrophenyl)furan-2-yl)acrylamide (CAS 853351-29-8)
- 2-((4-Ethoxyphenyl)amino)-2-oxoethyl 5-bromonicotinate (CAS 729564-97-0)
- N-(4-ethoxyphenyl)-3-methyl-1-phenyl-1H-thieno[2,3-c]pyrazole-5-carboxamide (CAS 296262-08-3)
- 2-(4-Ethoxyphenyl)-1-(2-(3-phenyl-1,2,4-oxadiazol-5-yl)pyrrolidin-1-yl)ethan-1-one (CAS 1798634-33-9)
- (Z)-3-(2-Ethoxyphenyl)-2-(4-(3-nitrophenyl)thiazol-2-yl)acrylonitrile (CAS 476669-20-2)
- (E)-4-(4-ethoxyphenyl)-4-oxo-N-(4-(trifluoromethoxy)phenyl)but-2-enamide (CAS 331461-86-0)
- (2-Ethoxyphenyl)(2-(4-(trifluoromethyl)phenyl)morpholino)methanone (CAS 1351589-19-9)
- 2-(4-Ethoxyphenyl)-5-(2-methoxybenzylidene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 617694-30-1)
Recommended Standards
- 3,3-Bis(4-hydroxy-3-methoxyphenyl)isobenzofuran-1(3H)-one (CAS 467-25-4)
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- 3-(2-Methoxyphenyl)-4-((4-(trifluoromethyl)benzylidene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 478257-40-8)
- 4,4′-{[1,4-phenylenebis(methylene)]bis(oxy)}dibenzoic acid (CAS 47593-50-0)
- 4-Fluoroazocan-5-ol (CAS 2010092-04-1)
- 1-(2-Aminopyridin-3-yl)-1H-benzo[d]imidazol-2(3H)-one (CAS 1956324-34-7)
- 5-tert-Butyl 1-methyl (2R)-2-{[(tert-butoxy)carbonyl]amino}pentanedioate (CAS 156143-34-9)
- (2S,3R,4S,5R)-2-(6-Amino-2-chloro-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol sulfate (CAS 2015222-51-0)
- 5-Chloro-3-methyl-1H-imidazo[4,5-b]pyridin-2(3H)-one (CAS 89660-20-8)
- 4-Hydrazinyl-N-methyl-1H-imidazole-5-carboxamide (CAS 741206-64-4)
- Sultamicillin Impurity 13 (CAS CATO-C4X-188613)
- 8-Bromo-3,4-dihydro-2H-benzo[b][1,4]dioxepin-7-amine (CAS 33631-96-8)
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