Disperse dye
Disperse dyes are the only water insoluble dyes that dye polyester[1] and acetate fibers. Disperse dye molecules are the smallest dye molecules among all dyes.[citation needed] A disperse dye molecule is based on an azobenzene (as Disperse Red 1 or Disperse Orange 37)[2] or anthraquinone [3] molecule with nitro, amine, hydroxyl, etc. groups attached to it.[1][failed verification]