CI 11680, also called pigment yellow 1 or Ext. D and C Yellow No.5 is a synthetic monoazo color used to impart color in cosmetics and personal care products. It is an oil-soluble pigment that is commonly used in soaps.
What is CI 11680 used for?
CI 11680 is used as a cosmetic colorant to impart a yellow color to the products. It is found to be used at 0.7% in rinse-off products and 0.3% in non-rinse-off products. It is oil-soluble and is suitable for use in soaps. There are various types of this pigment depending on the manufacturer. Based on the particle size of the pigment, the coloring intensity, light, and solvent resistance may differ.
Safety profile
CI 11680 is not for use in products intended for mucous membranes according to the European restriction IV/4. The European Scientific Community on Cosmetology allows its use in cosmetics for the time being. However, it is harmful by inhalation, in contact with skin and if swallowed.