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indoxyl การใช้

ประโยคมือถือ
  • Indoxyl can be found in urine and is titrated with Obermayer's reagent.
  • There, indole is converted to indoxyl sulfate.
  • Indoxyl sulfate is excreted in the urine.
  • The indoxyl that is liberated combines with a diazonium salt in order to produce a violet coloured azole dye.
  • In purple urine bag syndrome, bacteria that colonize the urinary catheter convert the indoxyl sulfate to indirubin and indigo.
  • The enzyme " indoxyl esterase " has been found in humans and is involved in another pathway of chemical reactions involving indoxyl.
  • The enzyme " indoxyl esterase " has been found in humans and is involved in another pathway of chemical reactions involving indoxyl.
  • The indigo precursor in urine turns out not to be indican, although it was called medical indican at the time, but indoxyl sulfate or gluconurate.
  • The species is PGR-positive, indoxyl-phosphate positive, Voges-Proskauer negative, phosphatase positive but is unable to reduce nitrate to nitrite.
  • Mention may also be made of indican, the glucoside of the indigo plant; this is hydrolysed by the indigo ferment, indimulsiri, to indoxyl and indiglucin.
  • In chemistry, "'indoxyl "'is a nitrogenous substance with the chemical formula : C 8 H 7 NO . Indoxyl is isomeric with oxindol and is obtained as an oily liquid.
  • In chemistry, "'indoxyl "'is a nitrogenous substance with the chemical formula : C 8 H 7 NO . Indoxyl is isomeric with oxindol and is obtained as an oily liquid.
  • Plants can synthesise useful coloured dyes and pigments such as the anthocyanins responsible for the red colour of red wine, yellow woad used together to produce Lincoln green, indoxyl, source of the blue dye indigo traditionally used to dye denim and the artist's pigments gamboge and rose madder.
  • The presence of an active ?-galactosidase can be detected by X-gal, a colourless analog of lactose that may be cleaved by ?-galactosidase to form 5-bromo-4-chloro-indoxyl, which then spontaneously dimerizes and oxidizes to form a bright blue insoluble pigment 5, 5'- dibromo-4, 4'- dichloro-indigo.