E180

E180 is a chemical compound, an ingredient included in the list of European food additives as a reddish colour. Its chemical name is Litholrubine BK o 3-hydroxy-4-[(4-methyl-2-sulfophenyl)diazenyl]naphthalene-2-carboxylic acid What it is used for and where Food It is an azo dye. The problem with azo dyes (monoazo or diazo) is photocatalytic...