Difference between revisions of "Young fustic (Cotinus coggygria ) LC"
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== Summary of results == | == Summary of results == | ||
| − | The primary coloring compounds are fisetin and | + | The primary coloring compounds are fisetin and sulferitin. Young fustic has poor lightfastness. |
== Analytical instrumentation and procedures == | == Analytical instrumentation and procedures == | ||
Revision as of 13:45, 31 August 2017
Description
A natural yellow dyestuff obtained from the wood of the smoketree, Cotinus coggygria (formerly Rhus cotinus). This small tree, also called Venetian sumac, is native to southern Europe, the Middle East, India and China.
Historical importance
Summary of results
The primary coloring compounds are fisetin and sulferitin. Young fustic has poor lightfastness.
Analytical instrumentation and procedures
Chromatograms
Absorbance at 350nm (mAU)
Sample information
sample information, By R. A. Laursen, Boston University
Identified compounds
| Compound | RT (min.) | MW | UV/vis | Other |
|---|---|---|---|---|
| Fisetin | 31.1 | 286 | 360 | Comments here |
| Fustin | 31.8 | 288 | 350 | |
| Sulfuretin | 34.5 | 270 | 394 | |
| Butein | 37.5 | 272 | 380 |
References
[1] [2] [3]