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tri·ke·to·hy·drin·dene hy·drate (tri-ke″to-hi-drinґdēn) chemical name: 1,2,3-indantrione monohydrate. A compound, C9H4O3·H2O, occurring as white to brownish white crystals or crystalline powder, used as a reagent. See under tests.Medical dictionary. 2011.
triketohydrindene hydrate test — Ninhydrin t … Medical dictionary
ninhydrin — (= triketohydrindene hydrate.) Pale yellow substance used to detect amino acids and proteins (compounds containing free amino or imino groups) with which it forms a deeply coloured purple blue compound … Dictionary of molecular biology
ninhydrin — (triketohydrindene hydrate) A strong oxidizing agent and causes the oxidative deamination of the ( amino function. The products of the reaction are the resulting aldehyde, ammonia, carbon dioxide, and hydrindantin, a reduced derivative of… … Forensic science glossary
ninhydrin reaction — n a reaction of ninhydrin with amino acids or related amino compounds used for the colorimetric determination of amino acids, peptides, or proteins by measuring the intensity of the blue to violet to red color formed or for the quantitative… … Medical dictionary
Ninhydrin test — (for free carboxyl or alpha amino groups) to a solution of aminoacetic acid and water, a solution of sodium acid is added, followed by a solution of triketohydrindene hydrate. The suspected matter is then added and the mixture is boiled. A violet … Medical dictionary
diketohydrindylidene-diketohydrindamine — The colored product formed in the reaction of an α amino acid and ninhydrin (triketohydrindene hydrate); a reaction used in the quantitative assay of α amino acid s … Medical dictionary
ninhydrin — Reacts with free amino acid s to yield CO2, NH3, and an aldehyde, the NH3 produced yielding a colored product (diketohydrindylidene diketohydrinamine, a bi indanedione derivative). SEE ALSO: n. reaction. * * * nin·hy·drin nin hī drən n a… … Medical dictionary
Ninhydrin reagent — trademark for a preparation of triketohydrindene hydrate … Medical dictionary
ninhydrin reaction — a histochemical test for proteins, in which ninhydrin (triketohydrindene hydrate) is boiled with the test solution and gives a blue colour in the presence of amino acids and proteins … The new mediacal dictionary
reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… … Medical dictionary
