Acid Blue 9

Acid Blue 9 (CI 42090) is a chemical compound, a dye mainly used in cosmetics and is better known by the name or Brilliant Blue FCF or FD&C Blue No. 1. It appears as a powder or blue liquid. The name defines the structure of the compound: CI stands for Colour Index, a reference database maintained by the Society of Dyers and Colourists and the...