indigo carmine

indigo carmine
A blue dye used for measurement of kidney function and as a special stain for Negri bodies. SYN: sodium indigotin disulfonate.

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indigo carmine n a soluble blue dye C16H8N2Na2O8S2 that is a sodium salt, is used chiefly as a biological stain and food color, and since it is rapidly excreted by the kidneys is used as a dye to mark ureteral structures (as in cystoscopy and catheterization)

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indigotindisulfonate sodium.

Medical dictionary. 2011.

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