Carmoisine is a red food colorant that is commonly used in various food industries such as confectionery, bakery, and beverage, among others. However, it is essential to note that carmoisine is not the only food colorant available in the market that can provide a red hue. There are several other synonyms for carmoisine that are worth considering. These synonyms include Allura Red, Food Red 3, E129, and Red 40. Allura Red is chemically identical to carmoisine and is an excellent alternative. At the same time, Food Red 3, E129, and Red 40 are also red food colorants that can be used as an alternative to carmoisine.