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Amaranth Dye - A sulfonic acid-based naphthylazo dye used as a coloring agent for foodstuffs and medicines and as a dye and chemical indicator. It was banned by the FDA in 1976 for use in foods, drugs, and cosmetics. (From Merck Index, 11th ed) |
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Amido Black - A dye used to stain proteins in electrophoretic techniques. It is used interchangeably with its acid form. |
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Arsenazo III - Metallochrome indicator that changes color when complexed to the calcium ion under physiological conditions. It is used to measure local calcium ion concentrations in vivo. |
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Azoxymethane - A potent carcinogen and neurotoxic compound. It is particularly effective in inducing colon carcinomas. |
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Diamide - A sulfhydryl reagent which oxidizes sulfhydryl groups to the disulfide form. It is a radiation-sensitizing agent of anoxic bacterial and mammalian cells. |
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Diazonium Compounds |
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Diazooxonorleucine - An amino acid that inhibits phosphate-activated glutaminase and interferes with glutamine metabolism. It is an antineoplastic antibiotic produced by an unidentified species of Streptomyces from Peruvian soil. (From Merck Index, 11th ed) |
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Dithizone - Chelating agent used for heavy metal poisoning and assay. It causes diabetes. |
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Evans Blue - An azo dye used in blood volume and cardiac output measurement by the dye dilution method. It is very soluble, strongly bound to plasma albumin, and disappears very slowly. |
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Formazans - Colored azo compounds formed by the reduction of tetrazolium salts. Employing this reaction, oxidoreductase activity can be determined quantitatively in tissue sections by allowing the enzymes to act on their specific substrates in the presence of tetrazolium salts. |
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o-Aminoazotoluene - An azo dye with carcinogenic properties. |
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p-Aminoazobenzene - Used in the form of its salts as a dye and as an intermediate in manufacture of Acid Yellow, diazo dyes, and indulines. |
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p-Azobenzenearsonate - A hapten capable of eliciting both antibody formation and delayed hypersensitivity when bound to aromatic amino acids, polypeptides or proteins. It is used as an immunologic research tool. |
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Tartrazine - An anionic, hydrophilic azo dye with an orange-yellow color used in fabrics, foods and cosmetics, and as a biological stain. |
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Trypan Blue - An azo that that is used in protozoal infections. |
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