indigokarmiini
Indigokarmiini, also known as indigotindisulfonate sodium, is a synthetic blue dye. Its chemical structure is derived from indigo, a well-known natural pigment. Indigokarmiini is primarily used in medicine as a diagnostic dye. It is administered intravenously to help visualize anatomical structures during surgical procedures, particularly in urology and gynecology. For example, it can be used to confirm the patency of ureters or to identify fistulas. The dye is eliminated from the body through the kidneys, giving the urine a temporary blue or green color. This excretion property also makes it useful in certain diagnostic tests related to kidney function. In some cases, it has been used as a pH indicator in laboratory settings. Indigokarmiini is generally considered safe for medical use, though adverse reactions can occur, such as allergic responses. It is important that it be administered by trained medical professionals. The color of indigokarmiini is a deep blue. Its solubility in water allows for easy intravenous injection.