1. The Beck's envision using chemical dyes called leuco-crystal violet or leuco-malachite green. 2. It is an important precursor to dyes such as crystal violet . 3. Crystal violet ( CV ) dissociates in aqueous solutions into and chloride ( ) ions.4. The counterstain, however, is unseen on Gram-positive bacteria because of the darker crystal violet stain. 5. The medium contains crystal violet and gentamicin as selective agents to suppress the growth of other bacteria. 6. Shimoji s selective enrichment broth contains tryptic soy broth, Tween 80, Tris-aminomethane, crystal violet and sodium azide. 7. Packer s medium is a selective medium for grossly contaminated specimens, which contains sodium azide and crystal violet . 8. Crystal violet lactone is an example.9. Several studies by the National Toxicology Program reported that the carcinogenic and mutagenic effects of crystal violet in rodents. 10. :For bacteria the good old gram stain ( crystal violet / fuchsine ) is most likely what you're looking for.
