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Indigo carmine is an organic sodium salt resulting from the formal condensation of indigo carmine (acid form) with two equivalents of sodium hydroxide. It is an indicator at pH 11.5-14, changing from blue to yellow. It has a role as a food colouring, a histological dye and a two-colour indicator.
Indigo carmine, or 5,5′-indigodisulfonic acid sodium salt, is an organic salt derived from indigo by aromatic sulfonation, which renders the compound soluble in water. It is approved for use as a food colorant in the United States and European Union to produce a blue color.
Indigo carmine, or 5,5-indigodisulfonic acid sodium salt, is an organic salt derived from indigo by aromatic sulfonation, which renders the compound soluble in water. For what analysis is the indigo carmine solution used?
Indigo carmine is a deep blue contrast dye that coats mucosal surfaces and persists for a few minutes, highlighting mucosal pits, grooves, and crevices, improving the visualization of mucosal structures and allowing for the delineation of any lesions or areas of inflammation.
20 Σεπ 2023 · Indigo carmine is used as a contrast agent during colonoscopy to differentiate between neoplastic and non-neoplastic colorectal lesions, being considered the most reliable method in diagnosing without performing a biopsy . Frequently, indigo carmine is used to identify flat colorectal lesions.
1 Indigo carmine. Used in concentrations ranging from 0.1 to 0.4%, indigo carmine is a surface contrast material, i.e. it is not absorbed by the mucosa.
1 Αυγ 2012 · Indigo carmine, the acid dye ‘Saxon Blue’, was invented by Johann Christian Barth in 1743. Indigo carmine is a water-soluble blue acid dye with the advantage of an easy dyeing process.
