title: A simple assay procedure for mixtures of hematoxylin and hematein.
mesh_terms: D001578:Benzopyrans / Q000032:analysis*; D002855:Chromatography, Thin Layer; D004396:Coloring Agents / Q000032:analysis*; D004355:Drug Stability; D007192:Indenes / Q000032:analysis; D008027:Light; D000432:Methanol; D008722:Methods; D010084:Oxidation-Reduction; D013053:Spectrophotometry; D013194:Staining and Labeling; D013696:Temperature
chemical_list: D001578:Benzopyrans; D004396:Coloring Agents; D007192:Indenes; D000432:Methanol