Chinese name: alkaline green
English name: Magentagreencrystals
Chinese alias: alkaline green 4
English alias: Bismarck Green4; Basovict Malachite Green; Methylium, bis[4-(dimethylamino)phenyl]phenyl; Rifa Basic Malachite Green; Simbase Malachite Green Zn free; Tetrophene Green M; Tokyo Aniline Malachite Green.
CAS No.: 14426-28-9
Molecular formula: C23H25N2
Molecular weight: 329.46
Green with flash crystals. Soluble in water, very soluble in ethanol, all in blue-green. The dye is yellow in concentrated sulfuric acid and turns dark orange after dilution; it is orange in concentrated nitric acid and orange-brown after dilution; sodium hydroxide is added to the aqueous solution to produce a white precipitate with green light. Dyeing at high temperature (120 ° C), the color shade is unchanged. Dye fastness on acrylic fibers 4-5.
Recently, many buyers have passed Alibaba, mainly used as dyes for silk, leather and paper.