The separation of orcein into four fractions by chromatography and the staining qualities of each fraction.
D002845:Chromatography; D004396:Coloring Agents; D010078:Oxazines; D013194:Staining and Labeling
D004396:Coloring Agents; D010078:Oxazines; C002313:PAcein
CHROMATOGRAPHY; DYES