5,5'-Diphenyl-[3,3'-bifuran]-2,2'(3H,3'H)-dione CAS 5653-94-1
| CAS No. | 5653-94-1 |
| Molecular Formula | C20H14O4 |
| Molecular Weight | 318.32 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 5,5'-Diphenyl-[3,3'-bifuran]-2,2'(3H,3'H)-dione (CAS 5653-94-1), a certified reference material (molecular formula C20H14O4, MW 318.32 g/mol) for analytical method development and quality control.
5,5'-Diphenyl-[3,3'-bifuran]-2,2'(3H,3'H)-dione (C20H14O4) 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.
Physical & Chemical Properties
| Molecular Formula | C20H14O4 |
| Molecular Weight | 318.32 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
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Recommended Standards
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- 2-(Aminomethyl)-3-chloro-5-(difluoromethyl)pyridine-6-methanol (CAS 1805378-50-0)
- 3-Oxo-3-(4-phenethylpiperazin-1-yl)propanenitrile (CAS 717858-21-4)
- Garciniaxanthone E (CAS 173294-74-1)
- 1-(2-Allylphenoxy)-3-(methylamino)propan-2-ol (CAS 78510-05-1)
- Cyagard RF 1204 (CAS 124788-09-6)
- 1-(benzenesulfonyl)-3-bromopropan-2-one (CAS 60156-13-0)
- 2H-Pyrido[3,4-e][1,2]oxazine (CAS 107116-53-0)
- Semaglutide Main Chain P29 (CAS 1169630-82-3)
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