An organic sodium salt that is the monosodium salt of 5-[(4-amino-5-methoxy-2-methylphenyl)diazenyl]-2-methoxybenzene-1-sulfonic acid. Occasionally used for the selective staining of amyloid.
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This entity has been manually annotated by the ChEBI Team.
A dye used in microscopic or electron microscopic examination of cells and tissues to give contrast and to highlight particular features of interest, such as nuclei and cytoplasm.