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Methyl violet 2B (IUPAC name: 4,4′-((4-Iminocyclohexa-2,5-dien-1-ylidene)methylene)bis(N,N-dimethylaniline) monohydrochloride) is a green powder which is soluble in water and ethanol but not in xylene. It appears yellow in solution of low pH (approximately 0.15) and changes to violet with pH increasing toward 3.2. [3]
Solvent Violet 13, also known as D&C Violet No.2, oil violet, Solvent Blue 90, Alizarine Violet 3B, Alizurol Purple, Duranol Brilliant Violet TG, Ahcoquinone Blue IR base, Quinizarin Blue, Disperse Blue 72, and C.I. 60725, is a synthetic anthraquinone dye with bright bluish violet hue.
Perylene is less toxic than its well-studied cousin benzo[a]pyrene. [5] Little is known about the compound's mechanism of toxicity, so US EPA findings are based on occupational hazard studies. Violet 29 is highly insoluble in water and octanol, so any exposure routes are considered to be by inhalation of dust. Thus, the EPA determined that ...
Crystal violet or gentian violet, also known as methyl violet 10B or hexamethyl pararosaniline chloride, is a triarylmethane dye used as a histological stain and in Gram's method of classifying bacteria. Crystal violet has antibacterial, antifungal, and anthelmintic properties and was formerly important as a topical antiseptic.
Viola decumbens is a small shrub with very fine granules on its green parts, and a woody base. The erect branching stems are up to 25 cm (9.8 in) high. It carries alternately set, slightly succulent, linear, green leaves 15–25 mm (0.59–0.98 in) long and ½—2 mm (0.02—0.08 in) wide with a pointed tip and an entire margin.