Dyes, Stains and Tinctures

Please enquire for more information about C.I.Reactive Yellow 194 including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about C.I.Reactive Red 222 including the price, delivery time and more detailed product information at the technical inquiry form on this page

Pigment yellow 155 is a polycarboxylic acid. It has a hydroxyl group and a polymerization initiator that can polymerize monomers to form polymers. Pigment yellow 155 is soluble in organic solvents, such as alcohols and ketones. It also has functional groups, which are groups of atoms on a molecule that can react with other substances. Pigment yellow 155 is used in the production of paints, plastics, rubber, textiles, and paper. The pigment’s color varies depending on its particle size. Pigment yellow 155 is typically used for coloring objects for use in electrophotography because it produces high-quality images when exposed to light or laser radiation.

Acid green 73 is a bright green colorant that belongs to the group of dicarboxylates. It is used in textile dyeing, paper dyeing, and food coloring. Acid green 73 can be used as a dye for cotton, wool, nylon, or silk. Acid green 73 has been shown to be soluble in organic solvents such as acetone, chloroform, ethyl acetate, ethers, and xylene. The solution of acid green 73 contains metal ions (Cu2+) and surfactants (sodium dodecyl sulfate). This dye also contains fatty acids that are responsible for the color of the solution. The dye is usually applied with a nozzle that has a diameter between 0.5-1 mm and it is oriented perpendicular to the direction of flow.

Please enquire for more information about C.I.Disperse Orange 89 including the price, delivery time and more detailed product information at the technical inquiry form on this page

Please enquire for more information about Amyloid Dan Protein (1-34) (reduced) trifluoroacetate salt including the price, delivery time and more detailed product information at the technical inquiry form on this page

Applications Labelled TEPA (T776600). Used as insect chemosterilant; in dyeing. Antineoplastic. Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References Gaines, et al.: Toxicol. Appl. Pharmacol., 14, 515 (1969), Huitema, A., et al.: Br. J. Clin. Pharmacol., 51, 61 (2001), Jinno, H., et al.: Drug Metab. Dispos., 31, 398 (2003),

Metanil Yellow is a reactive dye that is used in wastewater treatment as an adsorbent for removing organic pollutants. It has been shown to be effective in removing glycol ethers, which are toxic and persistent compounds used in industrial solvents. Metanil Yellow can also remove other toxic components such as phenol, benzene, and toluene. The Langmuir adsorption isotherm was used to determine the amount of dye required for maximum effectiveness. Metanil Yellow has been shown to have no significant negative effects on the growth of bacteria or yeast at concentrations up to 3%. The only adverse effect observed was a slight decrease in the rate of hydrogen fluoride degradation.

Please enquire for more information about Decrotex Yellow DCI including the price, delivery time and more detailed product information at the technical inquiry form on this page

Basic violet 3 is a light-sensitive dye that can be used for the detection of metals. It is a basic dye with a high resistance to water vapor and other solvents. Basic violet 3 has been shown to be carcinogenic in animal studies, but has not been shown to have any adverse effects on humans. The dye reacts with metal hydroxides such as aluminum hydroxide, iron(III) oxide, and calcium hydroxide by absorbing UV radiation. This reaction produces an increased amount of light that can be detected using a spectrophotometer. Basic violet 3 is used in surface methodology because it is able to react with particles and then bind to them through van der Waals forces. Basic violet 3 is also used for kinetic experiments because it provides data about the rate of chemical reactions or chemical processes. Kinetic data from these experiments can be used to determine the mechanism of the reaction or process being studied.

XTT sodium salt is a tetrazolium salt, which forms water-soluble formazan on bioreduction and has been used to assess cell viability by production of an orange colour.

Direct Black 38 (DB38) is a carbonate pigment with the chemical formula of Na2CO3. It has been used as a black pigment in paints, textiles, and plastics. DB38 has been shown to be genotoxic, meaning that it can cause mutations in cells by interacting with DNA. DB38 has also been shown to be toxic to animals and humans when ingested or inhaled at high concentrations. DB38 is not mutagenic, meaning that it does not cause genetic changes in cells or organisms. The toxicity of DB38 is dose-dependent: the higher the concentration of DB38, the more toxic it becomes.

Pigment Yellow 139 is a colorant that is soluble in organic solvents and has a maximum absorption wavelength of 595 nm. It can be used as an optical system polarizer, and it is also used in liquid crystal compositions. Pigment Yellow 139 changes color depending on the pH of the environment, and it undergoes polymerization when irradiated with radiation or an acid complex. This pigment is also soluble in glycol esters and polycarboxylic acids. Pigment Yellow 139 is produced by reacting hydroxyl groups with polycarboxylic acid products. The pigments are then converted to particles by crystallizing them using a reaction product of particle emission. Pigment Yellow 139 has a crystalline structure composed of irregularly shaped particles that are about 0.2-0.4 micrometers in diameter.

Amylose azure is a dye commonly used to detect and measure α-amylase activity in various applications. This dye is particularly useful in assessing the hydrolysis of starch by α-amylase. Amylose azure reacts with the enzyme and produces a blue color that can be quantified using spectrophotometry. In addition to its analytical applications, amylose azure is also used as a visual indicator of the presence of aluminum. The dye forms a complex with aluminum ions, resulting in a distinct color change that can be easily observed.

Acid Black 242 is a chemical dye that is used in the production of photoresists. It is also used as a black pigment in paints and printing inks. The dye is classified as hydrophilic, meaning it dissolves in water. Acid Black 242 has a color index number of PBk 6. It reacts with sulfide to form an acidic compound, which can be used to modulate the reaction time of certain reactions. Acid Black 242 is a benzene derivative that has been shown to depress the central nervous system when inhaled or ingested. It also inhibits the activity of diaminobenzene, which can cause depression when consumed orally or injected intravenously. The fluorescence emission spectrum of Acid Black 242 overlaps with that of other dyes such as acid red 1 and acid violet 7.

The monotetrazolium salt  Iodonitrotetrazolium chloride (INT), first described by Atkinson et al. (1950), is an iodinated derivative of TTC (2,3,5-Triphenyltetrazolium chloride) with an absorption λmax of 248 nm. The color produced by reduction of this iodonitro compound is a red to purple or brownish formazan with an absorption maximum at 485 to 492 nm (depending on the solvent). INT is often used to visualize dehydrogenase activity histochemically as well as in Western blot staining and as a staining agent for agar colony formation assays.  NAD or NADP-dependent dehydrogenases activity assays: NAD+- or NADP+-dependent dehydrogenase transfers electrons from a substrate (the electron donor, e.g. succinate) to NAD+ or NADP+, forming NADH and NADPH, respectively. Then, the final transfer of hydrogen to the tetrazolium salt is catalyzed by NADH or NADPH dehydrogenases (e.g. succinate dehydrogenase), leading to the reduction of INT and formation of the water-insoluble INT-formazan. 1 mol of formazan is produced for each mole of succinate utilized in the presence of INT. It is important to mention for applications in histology, that INT-formazan precipitates at the site of this latter dehydrogenase but not at the site of the original NAD+- or NADP+-dependent dehydrogenase activity.

Thiazolyl blue tetrazolium bromide, also called 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide and methylthiazolyldiphenyl-tetrazolium bromide, and mainly known as MTT, is employed in the so-called MTT reduction or colorimetric assay. The MTT assay is used to determine the metabolic activity of living cells and the viable cell number in proliferation and cytotoxicity studies. The assay is based on the enzymatic reduction of the yellow MTT to the purple-blue water-insoluble formazan catalysed by mitochondrial dehydrogenases of living cells. The amount of formazan produced is directly proportional to the number of viable cells and can be quantified by measuring absorbance at 570nm. The MTT assay is broadly employed in cell biology because it is rapid and economical. MTT is also used as enzyme substrates in studies of nicotinamide adenine dinucleotide phosphate (NADP)-dependent dehydrogenases.

Please enquire for more information about C.I.Basic Yellow 49 including the price, delivery time and more detailed product information at the technical inquiry form on this page

Direct Blue 15 is a water-soluble organic dye that is used in electrochemical impedance spectroscopy for wastewater treatment. The high salt and physiological effects of Direct Blue 15 have been studied in dose groups of rats. Direct Blue 15 was not found to be carcinogenic to rats, but did cause liver lesions at high doses. However, it did not cause DNA damage or induce mutations in the calf-thymus DNA. The hydroxyl group on the molecule allows it to bind to amines, which may explain its toxicity and mutagenicity.

Please enquire for more information about Brightlon Orange N-gSN including the price, delivery time and more detailed product information at the technical inquiry form on this page

Methylene green zinc chloride double salt is a reactive dye that is used in biological and analytical methods. It has a high affinity for proteins, which allows it to be used as a marker for protein-dye interactions. The methylene green zinc chloride double salt is an optical sensor that changes color when the dye interacts with other substances. It can be used to detect the presence of pathogens, such as bacteria or viruses, by determining the amount of dye remaining after exposure to the pathogen. Methylene green zinc chloride double salt also reacts with tetrazolium dye in biological samples, such as human serum or brain tissue, to produce a color change. This reaction mechanism can be used to measure metabolic activity in cells and tissues. In wastewater treatment, methylene green zinc chloride double salt can be used as an adsorbent for removal of organic pollutants from water. Methylene green zinc chloride double salt also has radiation-blocking properties and can be used as a protective agent against radiation exposure

Applications As a dye for wool and silks; as colorant in food, drugs, and cosmetics. In biochemistry as an adsorption-elution indicator for chloride estimations. Tartrazine (otherwise known as E number E102, C.I. 19140, or FD&C Yellow 5) is a synthetic lemon yellow azo dye used as a food coloring. Tartrazine appears to cause the most allergic and intolerance reactions of all the azo dyes, particularly among asthmatics and those with an aspirin intolerance. Dyes and metabolites, Environmental Testing.A recent report has shown that Tartrazine may be useful in 3D bio-printing of organ-like architectures. References Rowe, K.S., et al.: J. Pedriatics, 125, 691 (1994), Tanaka, T., et al.: Food Chem. Toxicol., 44, 179 (2006); Chem. and Eng News Page 4 May 6, 2019

Please enquire for more information about Brilliant green including the price, delivery time and more detailed product information at the technical inquiry form on this page

Direct Blue 202 is a reactive dye that is used in the treatment of wastewater. It has been shown to be effective for the removal of color from wastewater, with a high degree of efficiency. Direct Blue 202 has been shown to have low toxicity and does not persist in water. This dye also has dichroic properties and can be used as a polymerization initiator or coagulant.

Phenol red is a pH indicator that finds broad applications from chemistry to microbiology. Colour varies from yellow at pH<6.8 (lmax 443nm) through to light red/pink at 6.8<pH<8.2 (lmax 570 nm) to vivid purple/red at pH>8.2. It is widely used in cell culture to monitor pH and for colorimetric titration. For example, phenol red can be used to quantify Br- content in sea or fresh water. It is added to VTM as pH indicator, at the concentration of 10mg/ml, maintaining a pink colour at neutral pH.

Acid red 88 is a synthetic dye that has been used as a colorant in food, textiles and cosmetics. It is also used in wastewater treatment to remove organic pollutants from water. Acid red 88 has shown to be toxic to aquatic organisms, including fish and crustaceans. It has also shown to be highly adsorptive and stable in the environment. The hydrochloric acid-catalyzed conversion of Acid red 88 yields stable complexes with metals such as nickel, copper and zinc. These metal complexes are more resistant to degradation by biological treatment than other metal complexes with Acid red 88. Synchronous fluorescence spectroscopy showed that diazonium salt reacts with Acid Red 88 to form a diazo compound that can react with amines or ammonia gas to form an azoxy compound. This reaction can be catalyzed by activated carbon or detergent compositions containing an amine or ammonia gas. The hydrogen bond between the hydroxyl group on the dye molecule and the hydrogen atom

Please enquire for more information about C.I.Solvent Red 132 including the price, delivery time and more detailed product information at the technical inquiry form on this page

C.I. Mordant Orange 6 is an alkanoic acid with a hydroxyl group and a sodium carbonate counter ion in the form of a coordination complex that is chemically stable in the presence of light and heat. The synthesis of this compound involves the reaction of 2-nitrobenzaldehyde with sodium hydroxylsulfonate followed by hydrolysis of the product with sodium carbonate. This synthetic process is used to produce C.I. Mordant Orange 6 in large quantities, which are then purified using chromatography or recrystallization techniques. The biological studies on C.I. Mordant Orange 6 have shown that it has antimicrobial properties, but it does not show cytotoxic effects against human cells in culture at concentrations up to 10 µg/mL, making it a potential candidate for use as an antimicrobial agent for applications such as food packaging materials.br>br>C.I. Mordant Orange 6 also has been shown to

D-102Dye is a cationic dye and drug repositioning agent that is used for the treatment of bacterial infections. This compound has been shown to be an active inhibitor of bacterial growth by binding to the surface glycoprotein and inhibiting the transport of nutrients into the cell. D-102Dye binds to the hydrophobic pocket on the outer membrane, forming hydrogen bonds with the phosphate groups found there. The electrochemical impedance spectroscopy studies have shown that this compound inhibits bacterial growth in logarithmic phase cells, but not in stationary phase cells. This may be due to its ability to bind to surface glycoproteins in these different phases. D-102Dye also has high affinity for monoclonal antibodies and methoxy groups, which are present on many proteins and enzymes in mammalian cells.

Please enquire for more information about C.I.Acid Yellow 158:1 including the price, delivery time and more detailed product information at the technical inquiry form on this page

Pigment Yellow 12 is a yellow dye that belongs to the class of copper-complex dyes. It has a particle size of around 20 nm and an intramolecular hydrogen bonding with a hydroxyl group. Pigment Yellow 12 reacts with diazonium salt in the presence of hydrochloric acid, cationic surfactant, and amines to produce a bright yellow color. This dye is used as an indicator for urine samples, as well as in the production of textiles and plastics. Pigment Yellow 12 is not carcinogenic and does not have any known adverse effects on human health.

Please enquire for more information about Disperse yellow 56, technical grade including the price, delivery time and more detailed product information at the technical inquiry form on this page