Crystal violet / gentian violet / methyl Qinglian / methyl violet 10B / hexamethyl violet

English name：Crystal violet；Basic Violet 3；Methyl violet；C.I. 42555；Gentian Violet；Hexamethylpararosaniline chloride；Methyl Violet 10B

Other names: methyl Qinglian; Methyl violet 10B; Hexamethyl violet; Hexamethylrosaniline hydrochloride; Base violet 3; Methyl violet; Methyl violet; Gentian violet; Alkaline violet 3; Alkaline violet 5bn; Base magenta; Methyl violet 5GN; Alkaline violet 6bn; Alkaline brilliant violet 3B; Base green lotus; Base crystal violet; Alkaline green lotus; 303 base Qinglian powder 2B; Base Qinglian granule 2B; Hexamethyl p-fuchsin chloride

CAS No.: 548-62-9

C25H30ClN3=407.98

Grade: ar

Em (590nm, Water)：>93500

Loss on drying: ≤ 7.5%

Burning residue: ≤ 1.5%

Physicochemical properties: Green Crystal with metallic luster or dark green crystalline powder. It is a hexamethyl derivative of paramagenta and contains a small amount of tetra - and pentamethyl derivatives. 1g is dissolved in 10ml of ethanol and 15ml of glycerol, dissolved in water and chloroform, and the aqueous solution and ethanol solution are purple, almost insoluble in ether. Moderate toxicity, 50% lethal dose (rat, oral) 420mg / kg. Some commodities are mixtures of pentamethyl and hexamethylrosaniline

Purpose: biochemical research. Acid base indicator, pH 0.5 (green) ～ 2.0 (blue). Non aqueous titration indicator. Photometric determination of arsenic, gold, boron, iridium, silicon, tantalum, technetium, antimony and thallium, and biological staining. It can be used as a dye in industry to dye wool, silk and cotton products treated with tannin into purple; It is also used for dyeing paper, leather and ink, printing color, carbon paper, etc

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