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Madder lake contains two organic red dyes: alizarin and purpurin. [1] [2] [3] As a paint, it has been described as a fugitive, transparent, nonstaining, mid valued, moderately dull violet red pigment in tints and medium solutions, darkening to an impermanent, dull magenta red in masstone. [4] [5]
Quinacridone is an organic compound used as a pigment. Numerous derivatives constitute the quinacridone pigment family, which finds extensive use in industrial colorant applications such as robust outdoor paints, inkjet printer ink , tattoo inks , artists' watercolor paints , and color laser printer toner .
Alizarin crimson is a shade of red that is biased slightly more towards purple than towards orange on the color wheel and has a blue undertone. It is named after the organic dye alizarin , found in the madder plant, and the related synthetic lake pigment alizarin crimson (PR83 in the Color Index).
Alizarin Red is used in a biochemical assay to determine, quantitatively by colorimetry, the presence of calcific deposition by cells of an osteogenic lineage. As such it is an early stage marker (days 10–16 of in vitro culture) of matrix mineralization, a crucial step towards the formation of calcified extracellular matrix associated with ...
Red, green and blue lights, representing the three basic additive primary colors of the RGB color system, red, green, and blue. Magenta light is composed of equal amounts of red and blue light. Magenta, shown at the right, is one of the three secondary colors in the RGB color model, used to make all the colors on computer and television ...
Alizarin crimson is a vivid red pigment, inclined slightly toward purple, which was most widely used as a dye. It came from the Rubia tinctorum plant, commonly known as Madder . It has been found on fabrics in ancient Egyptian tombs, and its production in Europe was encouraged by Charlemagne for the early European textile industry.
Rose madder lake, originally from the root of the madder plant, is also known as alizarin crimson in its synthetic form. Since rose madder is fugitive when exposed to light, its use has been largely superseded, even in synthetic form, by quinacridone pigments.
Alizarin: Turkey red Mordant red 11 Pigment red 83 58000 anthraquinone 72-48-0: Alizarin blue 67410 anthraquinone 66675-89-6: Alizarin cyanin BBS Anthracene blue SWX Mordant blue 23 58610 anthraquinone 8005-67-2: Alizarin Red S: alizarin carmine Mordant red 3 58005 anthraquinone 130-22-3: Alizarin Violet Gallein Mordant violet 25 45445 fluorone ...