Related to DIRECT BLUE 15, Consumer Ingredients, Dyes, Indigo structure dyes, www.sigmaaldrich.com
Organic pigments (1)
AK Scientific (1)
TCI Chemicals (1)
Reactive Blue 4 (13324-20-4)
procion blue MX-R · procion blue MX-RX · procion blue MX-R, disodium salt
New coccine (2611-82-7)
E 124 · cochineal red · ponceau 4R
Acid red 88 (1658-56-6)
Fast Red S
Bromothymol blue (76-59-5)
Bromthymol Blue · Dibromothymolsulfonphthalein
Bromothymol blue (also known as bromothymol sulfone phthalein and BTB) is a pH indicator. It is mostly used in applications that require measuring substances that would have a relatively neutral pH (near 7). A common use is for measuring the presence of carbonic acid in a liquid.
Erioglaucine A (2650-18-2)
brilliant blue · blue 4 · blue no. 1
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.
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.
Tetrabromophenol blue (4430-25-5)
Bromophenol Blue · Bromphenol Blue
Brilliant Blue (25305-78-6, 68921-42-6)
blue 4 · blue no. 1 · brilliant blue FCF
Bromocresol green (76-60-8)
Bromcresol Green · Tetrabromocresolsulfonphthalein
Bromocresol green (BCG) is a dye of the triphenylmethane family (triarylmethane dyes). It belongs to a class of dyes called sulfonephthaleins. It is used as a pH indicator in applications such as growth mediums for microorganisms and titrations.
Solochrome Dark Blue (2538-85-4)
calcon · eriochrome blue black R · 3-hydroxy-4-((2-hydroxy-1-naphthalenyl)azo)-1-naphthalenesulfonic acid
methylene blue (61-73-4)
Methylthionine Chloride · Methylene Blue N · Urolene Blue
Methylene blue, also known as methylthioninium chloride, is a medication and dye. As a medication, it is mainly used to treat methemoglobinemia. Specifically, it is used to treat methemoglobin levels that are greater than 30% or in which there are symptoms despite oxygen therapy.
CELESTINE BLUE (1562-90-9)
celestine Blue B · C.I. mordant blue 14
Disperse Orange 1 (2581-69-3)
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.
DISPERSE BLUE 1 (2475-45-8)
Oracet blue · C.I. Disperse Blue 1
Red Dye No. 2 · Amaranth Dye · FD and C Red No. 2