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Methyl violet 2B (Tetramethylparosanilinium chloride, 4,4′-[(4-imino-2,5-cyclohexadien-1-yliden)methylen]bis(N,N-dimethylaniline)hydrochloride) is a violet triarylmethane dye from the group of cationic dyes and an essential component of C.I. Basic Violet 1 (trivial name methyl violet).
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.
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]
Azo violet (Magneson I; [1] p-nitrobenzeneazoresorcinol) is an azo compound with the chemical formula C 12 H 9 N 3 O 4. It is used commercially as a violet dye and experimentally as a pH indicator, appearing yellow below pH 11, and violet above pH 13. [2] It also turns deep blue in the presence of magnesium salt in a slightly alkaline, or basic ...
Violaceae is a family of flowering plants established in 1802, consisting of about 1000 species in about 25 genera. It takes its name from the genus Viola, the violets and pansies.
Violet is the color of light at the short wavelength end of the visible spectrum. It is one of the seven colors that Isaac Newton labeled when dividing the spectrum of visible light in 1672. Violet light has a wavelength between approximately 380 and 450 nanometers. [2] The color's name is derived from the Viola genus of flowers. [3] [4]
Violet Constance Jessop (2 October 1887 – 5 May 1971) was an Irish-Argentine ocean liner stewardess and Voluntary Aid Detachment nurse in the early 20th century. Jessop is best known for having survived the sinking of both RMS Titanic in 1912 and her sister ship HMHS Britannic in 1916, as well as having been aboard the eldest of the three sister ships, RMS Olympic, when it collided with the ...
A woman wearing white Áo dài, May 2021. Áo dài (English: / ˈ aʊ ˈ d aɪ, ˈ ɔː ˈ d aɪ, ˈ aʊ ˈ z aɪ /; Vietnamese: [ʔaːw˧˦ zaːj˨˩] (), [ʔaːw˦˥ jaːj˨˩] ()) [1] [2] is a modernized Vietnamese national garment consisting of a long split tunic worn over silk trousers.