Indigo Carmine

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indigo carmine

[′in·də·gō ′kär·mən]
(organic chemistry)
C16H8N2Na2O8S2 A dark blue powder with coppery luster; used as a dye in testing kidney function and as a reagent in detecting chlorate and nitrate. Also known as soluble indigo blue.

Indigo Carmine


the disodium salt of indigo-5, 5’-disul-fonic acid, derived by sulfonating indigo. Readily soluble in water, it is used to make inks and food colors and as a chemical indicator. Indigo carmine is not used as a textile dye because of its poor resistance to light.


Kogan, I. M. Khimiia krasitelei. Moscow, 1956.
References in periodicals archive ?
Results of indigo carmine and 3-nitropherol's oxidation with both Ruff's and Fenton's systems with various pH values of reaction medium (see the Table) has been generally consistent with current knowledge about optimal pH interval (2,5-3,5).
As can be seen from the above, in the process of indigo carmine and 3-nitrophenole's oxidation nano-sized particles are detected in reaction mixture at a wide range of pH values, even at rather low values, though at pH = 1-1,5 the amount of such particles is low.
The degradation of Indigo carmine solutions were carried out by anodic oxidation.
The change in concentration of the indigo carmine was recorded by change in color using spectrophotometer.
Following tie-down of the suspension sutures, cystoscopy with IV indigo carmine is recommended.
ATLANTA -- Cystoscopy with intravenous indigo carmine dye is safe and accurate for detecting ureteral obstruction following vaginal surgery for pelvic organ prolapse, Arlan M.
Five minutes before the operation is over, have the anesthesiologist give the patient 5 cc of indigo carmine.
All the women had intraoperative cystoscopy performed at completion of the Burch procedure after intravenous indigo carmine dye was administered.
This test, also known as the indigo carmine test, involves the intravenous injection of one ampule of indigo carmine dye.