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Related to DIRECT BLUE 15, Consumer Ingredients, www.sigmaaldrich.com, Organic pigments

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Dyes (1)
Indigo structure dyes (1)
Pigments (1)

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INDIGO (68651-46-7, 482-89-3)  
Indigo Blue  ·  Indigo Carmine  ·  indigotin
Indigo is a deep and rich color close to the color wheel blue (a primary color in the RGB color space), as well as to some variants of ultramarine. It is traditionally regarded as a color in the visible spectrum, as well as one of the seven colors of the rainbow: the color between blue and violet; however, sources differ as to its actual position in the electromagnetic spectrum. The color indigo is named after the indigo dye derived from the plant Indigofera tinctoria and related species.

Related Results:
Leucomalachite green (129-73-7)  
4,4'-benzylidenebis(N,N-dimethylaniline)
Malachite green is an organic compound that is used as a dyestuff and controversially as an antimicrobial in aquaculture. Malachite green is traditionally used as a dye for materials such as silk, leather, and paper. Despite its name the dye is not prepared from the mineral malachite, and the name just comes from the similarity of color.
Solvent Blue 36 (14233-37-5)  
1,4-bis(isopropylamino)anthraquinone  ·  Oil Blue A
Oil Blue A is a blue anthraquinone dye used for colouring certain plastics such as polystyrene and acrylic resins, as well as other materials such as petroleum and inks. It has good resistance to light.
CARMINIC ACID (1390-65-4, 1260-17-9)  
Carmine  ·  Cochineal Dye  ·  Natural Red 4
Carminic acid (C22H20O13) is a red glucosidal hydroxyanthrapurin that occurs naturally in some scale insects, such as the cochineal, Armenian cochineal, and Polish cochineal. The insects produce the acid as a deterrent to predators. An aluminum salt of carminic acid is the coloring agent in carmine.
New coccine (2611-82-7)  
E 124  ·  cochineal red  ·  ponceau 4R
MALACHITE GREEN (569-64-2, 13425-25-7)  
basic green 4  ·  (4-(4-(dimethylamino) alpha-phenylbenzylidene)-2,5- cyclohexadien-1-ylidene)dimethylammonium chloride  ·  C.I. 42000
Malachite green is an organic compound that is used as a dyestuff and controversially as an antimicrobial in aquaculture. Malachite green is traditionally used as a dye for materials such as silk, leather, and paper. Despite its name the dye is not prepared from the mineral malachite, and the name just comes from the similarity of color.
Disperse Orange 1 (2581-69-3)  
4-anilino-4'-nitroazobenzene
Disperse Orange 1 (4-anilino-4'-nitroazobenzene) is a dye of the azobenzene class. Disperse Orange 1 contains approximately 25% dye by weight, with the remaining mass consisting of NaCl and other salts. This dye is useful in conducting experiments with flash photolysis due to the isomerization effect between the trans-4A4N and cis-4A4N states that occurs during photo relaxation.
Solvent green 3 (128-80-3)  
1,4-di-4-toluidinoanthraquinone  ·  cyanine green G base  ·  D and C Green #6
Quinizarine Green SS, also called Solvent Green 3, C.I. 61565, Oil Green G, D&C Green #6, is a green dye, an anthraquinone derivative. It has the appearance of a black powder with melting point of 220-221 °C.
Disperse orange 3 (730-40-5)  
Dispersion Orange 3  ·  Serisol Fast Orange GD  ·  D Orange 3
Carmine (1390-65-4, 1260-17-9, 1343-78-8)  
carminic acid  ·  Cochineal Dye  ·  Natural Red 4
Carminic acid (C22H20O13) is a red glucosidal hydroxyanthrapurin that occurs naturally in some scale insects, such as the cochineal, Armenian cochineal, and Polish cochineal. The insects produce the acid as a deterrent to predators. An aluminum salt of carminic acid is the coloring agent in carmine.
AMARANTH (915-67-3)  
Red Dye No. 2  ·  Amaranth Dye  ·  FD and C Red No. 2
Lawsone (83-72-7)  
henna dye  ·  lawsone, sodium salt  ·  sodium lawsonate
Lawsone (2-hydroxy-1,4-naphthoquinone), also known as hennotannic acid, is a red-orange dye present in the leaves of the henna plant (Lawsonia inermis) as well as in the flower of water hyacinth (Eichhornia crassipes). Humans have used henna extracts containing lawsone as hair and skin dyes for more than 5000 years. Lawsone reacts chemically with the protein keratin in skin and hair, in a process known as Michael addition, resulting in a strong permanent stain that lasts until the skin or hair is shed.
D & C Brown no. 1 (1320-07-6, 6371-84-2)  
Acid Orange 24  ·  AO24 dye
m-Cresol purple (2303-01-7)  
3-cresol purple, monosodium salt  ·  m-cresolsulfonphthalein  ·  3-cresol purple
Solochrome Dark Blue (2538-85-4)  
calcon  ·  eriochrome blue black R  ·  3-hydroxy-4-((2-hydroxy-1-naphthalenyl)azo)-1-naphthalenesulfonic acid
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