She could try rosaniline chloride or crystal violet, but now is not the time for that.
Methyl violet 10B is also known as crystal violet (and many other names) and has medical uses.
The product is titrated with perchloric acid and detected with crystal violet.
Gram-positive bacteria will retain the crystal violet dye when washed in a decolorizing solution.
Gram-negative bacteria are those that do not retain crystal violet dye in the Gram staining protocol.
In some cases, the anions associated with the cationic dyes (say crystal violet) vary even though the name of the dye does not.
A number of possible routes can be used to prepare crystal violet.
The medium contains crystal violet and gentamicin as selective agents to suppress the growth of other bacteria.
Applying a primary stain (crystal violet) to a heat-fixed smear of a bacterial culture.
This is based on the physical properties of their cell walls, as opposed to gram-negative bacteria, which cannot retain the crystal violet stain.
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