Dyes, Stains and Tinctures

Please enquire for more information about Disperse red 277 including the price, delivery time and more detailed product information at the technical inquiry form on this page

C.I. Solvent Orange 3 is a fluorescent dye that is used as a tracer in analytical chemistry to measure the water permeability of a sample by measuring the rate of diffusion of the dye. It is also used for sample preparation and kinetic studies when performing dispersive solid-phase extraction or surface methodology. The results show that C.I. Solvent Orange 3 has high water solubility and good stability, but can be decomposed by radiation, such as ultraviolet light and gamma rays, with an activation energy of around 100-150 kJ/mol and an induction time of 5-10 minutes. The compound has been detected in oroxylum indicum and curcuma aromatica plants, as well as angelicae dahuricae, titration calorimetry, and human serum samples from China. The compound is able to form hydrogen bonding interactions with other molecules such as glycol ethers, which are commonly found in Chinese herbs such as Angelica Dah

Basic yellow 40 is a basic dye that belongs to the group of dyes. It is an orange-yellow powder that is soluble in water and alcohol. Basic yellow 40 has been used as an additive in food, drugs, and cosmetics. Basic yellow 40 has been shown to inhibit cancer cell growth by binding to the phospholipid membrane and inhibiting the synthesis of fatty acids and cholesterol. The optimum concentration for this compound is 10-4 M.

Reactive fluorescent labeling reagent

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.

WST-5 is a colourless compounds which become coloured when reduced to WST-5 formazan forming a blue colour. Traditionally used as an indicator of cell metabolism in eukaryotes and prokaryotes, WST-5 functions as an artificial electron acceptor and thus detects dehydrogenase activities. The production of coloured formazan is irreversible and can be quantified using spectrophotometry.

Fast Yellow is a liquid crystal composition that is used in the production of devices and liquid crystal compositions. It has a high molecular weight, low surface tension, and excellent solvency and dispersing properties. Fast Yellow is also a disinfectant with good water absorption, which makes it suitable for use as an additive in polymer films. Fast Yellow consists of arylalkyl groups that are hydrophobic, making this product highly suitable for use in devices with hydrophobic surfaces.

Bromophenol Red sodium salt is a colorless, odorless chemical compound that is an inorganic phosphate salt. It emits a yellow color when lit by ultraviolet light. Bromophenol Red sodium salt is used as a surfactant and carbonate buffer in the laboratory. It also has properties of a color indicator and pH indicator.

Pigment Yellow 182 is a heat-resistant organic pigment that is used as the yellow in some traffic paints. It can be polymerized by an initiator, such as eugenol, and has a molecular weight of 191. Pigment Yellow 182 has a particle diameter of 2.5 nm and is insoluble in water. Pigment Yellow 182 absorbs light with wavelengths between 580 and 640 nm and therefore appears bright yellow to the human eye.

Bindschedler's Green Leuco Base is an analytical chemistry reagent used for the detection of nitrite ions in clinical and other uses. It is a green dye that reacts with nitrite ions to form a red-brown compound. The reaction between nitrite ions and Bindschedler's Green Leuco Base is catalyzed by hydrochloric acid, which provides the acidic conditions necessary for the reaction. Bindschedler's Green Leuco Base has been shown to be useful for detecting nitrite ion concentrations in human serum or plasma. The detection time is rapid and can be completed within 5 minutes. This dye has also been shown to react with dinucleotide phosphate, chloride, or mercuric chloride in a transfer reaction. Bindschedler's Green Leuco Base also exhibits kinetic properties as it reacts with mouse hippocampal tissue or polyamine oxidase.

C.I. Acid Yellow 117 is a dye that has been used in the textile industry, but is now used primarily as a food colorant. It is not metabolized by the body and is excreted unchanged in urine and feces. C.I. Acid Yellow 117 may cause symptoms such as nausea, vomiting, abdominal pain, diarrhea, headache and dizziness at high levels of exposure (above 10 milligrams per day). The dye can also cause methemoglobinemia in children who have glucose-6-phosphate dehydrogenase deficiency or who are taking an oxidizing drug such as sulfonamides or nitrofurantoin. C.I. Acid Yellow 117 binds to form a water-soluble complex with calcium ions when it enters wastewater treatment plants where it can be removed by activated sludge treatment processes or by precipitation with lime or aluminum sulfate before release into rivers or oceans. C.I. Acid Yellow 117 has been shown to inhibit cell

Please enquire for more information about Sandoal gold 4N including the price, delivery time and more detailed product information at the technical inquiry form on this page

Acid Red 266 is a hydroxyl-containing polymeric dye that is used in the textile and paper industries as a colorant, pigment, or dye. It has been shown to be an efficient control agent for the polymerization of polyvinyl acetate. Acid Red 266 can also be used to form films with high light stability and good mechanical properties. The hydroxyl group present in this molecule causes it to have a polarizing effect on UV absorption. Acid Red 266 is made of particles that are soluble in water and alcohols, but insoluble in oils. This acid dye is also sensitive to heat, so it should not be exposed to temperatures over 60°C.