Basic fuchsin / fuchsin / basic fuchsin / basic violet 14 / rosaniline / dark red / red aniline dye

English Name: Fuchsin Basic; Basic Violet 14； Magenta； Basic magenta； Basic rubin； C.I. 42510

Other names: magenta; Base fuchsin; Alkaline violet 14; Rosaniline; oxblood red; Red aniline dye; Alkaline new red; Rosaniline hydrochloride; (4 - (4-aminophenyl) (4-iminocyclohexyl-2,5-dienyl) methyl) - 2-methylaniline hydrochloride; Rose pigment; 4-amine-3-toluene bis (4-aminobenzene) methanol

CAS No.: 632-99-5

C20H20N3Cl=337.85

Grade: ind

Loss on drying: ≤ 14.6%

Sodium sulfite test: acceptable

Burning residue: ≤ 0.2%

Physicochemical properties: green or yellowish green metallic luster crystal, which is a mixture of magenta and paramagenta hydrochloride or acetate. Decomposition above 200 ℃. Soluble in ethanol and pentanol, slightly soluble in water, insoluble in ether. It is red when dissolved in alcohol; It is red purple in hot water, yellow brown in concentrated sulfuric acid, and almost colorless after dilution; The aqueous solution plus sodium hydroxide solution is an almost colorless liquid with red precipitate. Maximum absorption wavelength (in ethanol) 543nm（ ε 93000)。 Poisonous

Purpose: biochemical research. It is used to prepare Schiff reagent to detect aldehydes, and to determine some acid ions and metal ions by extraction spectrophotometry. It is also used for photometric detection of bromine, nitrite and sulfur dioxide. Used as a great inhibitor in polarographic analysis. It is also used as a nuclear dye for biochemical analysis and is the strongest nuclear dye. It can stain mucin, elastic tissue and magenta granules. Nuclear staining of central nervous system; Used in bacteriology to identify Mycobacterium tuberculosis; In analytical chemistry, Schiff reagent was prepared to test aldehydes. Redox indicator titrated with bromate

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