title: A technique for distinguishing between methylene violet and methylene violet Bernthsen.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002855:Chromatography, Thin Layer; D004396:Coloring Agents; D008751:Methylene Blue; D013194:Staining and Labeling / Q000379:methods*
chemical_list: D004396:Coloring Agents; D008751:Methylene Blue