Dyes, Stains and Tinctures

C.I.Reactive Orange 13 is a reactive dye that can be used for the detection of bacterial strains, including Legionella pneumophila and Pseudomonas aeruginosa. The dye reacts with metal ions to form a precipitate, which can be detected by measuring the viscosity or turbidity of the solution. C.I.Reactive Orange 13 has been shown to bind to biomass from fungi and bacteria, which is why it is often used for monitoring water quality in wastewater treatment plants and for detecting microbial contamination in food products. C.I.Reactive Orange 13 is also an effective metal chelator that can be used for kinetic studies on borohydride reduction reactions involving iron and other transition metals.

Bis(6-chloro-3-indoxyl)pyrophosphoric acid, disodium salt is a fine chemical that can be used as a versatile building block in the synthesis of complex compounds. It is an intermediate in research chemicals and is used as a reagent and speciality chemical. The compound has potential use as a useful scaffold for the synthesis of pharmaceuticals, dyes, and pesticides.

Fluorescent probe of intracellular lipids and hydrophobic domains of proteins

Vat Orange 3 is a reactive dye used in the production of polyester fibers. It has been classified as a triarylmethane dye and belongs to the group of vat dyes. Vat Orange 3 has three functional groups, an aromatic hydrocarbon, fatty acid, and hydroxyl group. The monomers are ethylene glycols and propionates. The polymerization initiator is sodium methoxide or potassium methoxide. The molecular weight is about 600 g/mol. Vat Orange 3 is an electrophotographic dye that reacts with metal hydroxides such as aluminium hydroxide to produce a bright orange coloration in the presence of light. It also exhibits fluorescence when exposed to ultraviolet light at 350 nm (UV-A).

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

Nuclear fast red (NFR) is a fluorescent dye that binds to the DNA of cells in tissue sections. NFR has been shown to bind to the nuclear region of cells, where it can be used as a marker for disease activity or cell nuclei. It is commonly used in immunofluorescence staining and flow cytometry. Disulfide bonds are present in this molecule and are important for its stability and function. When disulfide bonds are broken, the dye becomes non-fluorescent. Nuclear fast red is a monosodium salt with a molecular weight of 694.3 g/mol and an empirical formula of C 34 H 29 NO 10 Na 2 .