Indigo carmine

Indigo Carmine

Indigo Carmine (pronounced: /ˈɪndɪɡoʊ ˈkɑːrmaɪn/), also known as 5,5'-Indigodisulfonic acid sodium salt or E132, is a synthetic blue dye used in a variety of applications, including as a colorant in foods and in medical procedures.

Etymology

The term "Indigo Carmine" is derived from the deep indigo blue color it produces. "Carmine" is a term often used to describe a rich, vivid hue. The chemical name, 5,5'-Indigodisulfonic acid sodium salt, refers to its chemical structure.

Usage

In the medical field, Indigo Carmine is often used in diagnostic procedures. It is injected intravenously and allows doctors to visualize certain structures or fluids within the body more clearly. For example, it is commonly used in cystoscopy procedures to help identify the ureteral orifices.

Related Terms

• Dye
• Colorant
• Cystoscopy
• E number
• Food coloring

Safety and Regulations

Indigo Carmine is generally considered safe for use in food and medical applications. However, like all substances, it can cause allergic reactions in some individuals. In the European Union, it is identified by the E number E132.

See Also

• List of food additives
• List of E numbers
• List of medical procedures

External links

• Medical encyclopedia article on Indigo carmine
• Wikipedia's article - Indigo carmine

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