Aromatic amines (1)
Staining dyes (1)
Sigma Aldrich (1)
TCI Chemicals (1)
Mordant Brown 33 (3618-62-0)
MB33 cpd · 2,4-diamino-5-(2-hydroxy-5-nitrophenylazo)benzenesulfonic acid sodium salt
Mordant brown 33 (MB33) is 2,4-diamino-5-(2-hydroxy-5-nitrophenylazo) benzene sulfonic acid sodium salt. The UV-Visible spectra of MB33 in all mixtures investigated display three absorption bands in 50% ethanol within all the pH ranges 1.5-13.3 using Thiel buffer the maximum absorption of these bands is located at 438, 453 and a double head band at 410 and 475 nm . The band at 438 nm corresponds to absorption attributed to the cationic form (LH6) of MB33 (whereas L indicates to the parent structure of ligand without hydrogen protons) and disappears at pH > 3.0.
Janus green B (2869-83-2)
Janus Green B is a basic dye and vital stain used in histology. It is also used to stain mitochondria supravitally, as was introduced by Leonor Michaelis in 1900. The indicator Janus Green B changes colour according to the amount of oxygen present.
Triphenylmethane, or triphenyl methane, is the hydrocarbon with the formula (C6H5)3CH. This colorless solid is soluble in nonpolar organic solvents and not in water. Triphenylmethane is the basic skeleton of many synthetic dyes called triarylmethane dyes, many of them are pH indicators, and some display fluorescence.
pinacyanol · pinacyanol chloride · quinaldine blue iodide
Tetrabromophenol blue (4430-25-5)
Bromophenol Blue · Bromphenol Blue
Pinacyanol chloride (2768-90-3)
pinacyanol · quinaldine blue iodide · quinaldine blue tosylate
2-BROMOPHENOL (32762-51-9, 95-56-7)
o-bromophenol · ortho-bromophenol
28631-66-5 (8004-91-9, 28631-66-5)
aniline blue · water blue
Acid orange 24 (1320-07-6)
Tropaeolin O (547-57-9)
AO6 dye · Acid Orange 6
Chrysoine resorcinol is a synthetic azo dye which was formerly used as a food additive. In Europe, it was banned as a food additive in 1977. In the US, it was banned in 1988.
rhodamine 6G cation (63022-06-0, 63022-07-1, 989-38-8, 47724-48-1, 12224-98-5)
rhodamine 6G · basic red 1 · rhodamine 6GO
Rhodamine 6G is a highly fluorescent rhodamine family dye. It is often used as a tracer dye within water to determine the rate and direction of flow and transport. Rhodamine dyes fluoresce and can thus be detected easily and inexpensively with instruments called fluorometers.
Leucomalachite green (129-73-7)
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.