E132 is a food additive approved by the European Union (EU). It is used as a synthetic colouring agent in food and drink products.
The common names for E132 are indigontine and indigo carmine.
E132 is highly soluble in water and gives a blue colouring. It is most commonly used as an additive to capsules and tablets. It is a coal tar derivative and may also be used as a biological stain. E132 occurs naturally in the shrub indigofera tinctoria, but is always synthesised when used commercially.
Examples of food and drink products that sometimes include E132:
- ice creams
- bakery products