Dyes, Stains and Tinctures

a contrast agent used in medical imaging such as angiography, CT scans, and MRI.

Disperse Orange 3 is a diazonium salt that has been used in the textile industry as a dye, but has also been used as a reagent for the synthesis of organic compounds. Disperse Orange 3 is synthesized by reacting an azobenzene with a fatty acid, which yields an unstable intermediate. The intermediate undergoes photochemical reactions when exposed to ultraviolet light or moisture. This reaction produces benzalkonium chloride and ft-ir spectroscopy, which confirms the identity of Disperse Orange 3. Disperse Orange 3 is used in biological treatment and binding constants experiments to measure the strength of interactions between molecules. It has clinical relevance in magnetic resonance spectroscopy because it can be used to probe molecular interactions with proteins or nucleic acids. It also has solubility data that can be used to determine its solubility in water and other solvents.
Disperse Orange 3 is soluble in supercritical carbon dioxide at high temperatures, but insoluble at room temperature

Single isomer of 5(6)-ROX. It is a fluorescent dye used in RT-PCR methods as an internal reference to determine fluorescence variation that is not associated with the amplification process (plastic of the wells, small differences in concentration or volume, instrument measurements). It produces a constant fluorescence emission signal during the PCR process that is used to normalise the emission produced by the reporter. The fluorescence signal is compatible with most reporters. It is used to label the 5’ end of oligonucleotides as a reporter in the presence of a quencher at the 3’ end (dual labelled probe). During the amplification, the dye is cleaved, and the fluorescence increases proportionally with the amount of the specific sequence amplified during the PCR process. The development of the fluorescence signal is therefore specifically related to the amplification of the target sequence. 6-ROX with NHS-activated carboxylic acids reacts with primary amines.

Direct Yellow 96 is a Direct Fast to Light dye (DFL) also known as diphenyl Brilliant Flavine 7GFF, direct Yellow 7GFF, Solophenyl Flavine 7GFE and Solophenyl Flavine 7GFE 500. Direct Yellow 96 is ideal for application on cellulosic fibres, making it suitable for textile and paper colouring. Solophenyl Flavine 7GFE 500 has been described as useful dye of fungal cell walls. The dye yields fluorescently stained material generally in the blue to green wavelengths and provides an excellent alternative to the more commonly used fluorophore, Calcofluor White M2R.

5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride is a tetrazolium dye used as an indicator of eukaryotic cells in a range or media including waste water resulting in a cyan color. It is commonly used in microbiology laboratories to measure the viability of cells. The redox potentials of 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride are reduced by the presence of active respiratory cells, resulting in fluorescent formazan.

C.I.Acid Yellow 42 is a reactive dye that belongs to the class of chromatic compounds. It is used in photolithography and as a pH indicator, but is also an environmental pollutant. C.I.Acid Yellow 42 is hydrated and has radical mechanism of photodecomposition, which makes it subject to radiation and mineralization. C.I.Acid Yellow 42 can be used in assays for detecting ions such as copper, iron, zinc, or mercury at efficiencies greater than other dyes in the same class. It can also be synthesized from organic materials or biodegradable substances such as dyes from natural sources or phenol-formaldehyde resins with low toxicity to humans and the environment.>>END>>

Crocein Orange G is a water-soluble, orange fluorescent dye that is used in wastewater treatment. It has been shown to form stable complexes with fatty acids and other organic compounds. These complexes are more readily removed by adsorption. Crocein Orange G has also been shown to react with potassium dichromate and form a yellow product. This product can be detected at low concentrations and is not toxic to humans or animals.

C.I. Solvent Yellow 189 is a monomer that is used in coatings, paints, and printing inks. It is a polymeric dye with high activity and excellent light resistance. The hydrophobic nature of this dye makes it ideal for use in coatings that require water-repellent or weatherproof properties. C.I. Solvent Yellow 189 has been shown to be reactive with formamide as well as styryl dyes to form copolymers with high crosslinked content for high-performance devices such as light barriers and filters.

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.

Acridine orange is a fluorescent dye that is used as a biological stain. It binds to DNA and stains the cells it has bound to, making them more visible under an ultraviolet light. This dye also produces kinetic data on the micronucleus test in mice and rats. Acridine orange can be used to detect genotoxic effects in animals and humans, such as genetic damage or cancer. Kinetic studies have shown statistically significant increases in plasma mass spectrometry, but no significant changes in erythrosine uptake were observed. Acridine orange has been shown to cause genotoxic effects on brain cells and testicular cells.

C.I. Acid Orange 60 is a polyolefin that is used as an additive for ophthalmic lenses to reduce the possibility of fogging by absorbing moisture and oxygen. It is also used in the production of ionizable dyes, nucleophilic substances, reactive substances, and surfactants. This product is typically applied using an organic solvent or chemical ionization mass spectrometry.