Alizarin Cyanine Green F (NSC-41838) is an agent of green dye. It can be used to dye paper, chromed leather, wool, silk, and nylon (acid bath), to stain wood, and to color anodized aluminum, urea-melamine resin, and soap. It is used to color nylon 66 and/or nylon 6 nonabsorbable surgical sutures for use in general surgery and used for coloring drugs generally, including drugs intended for use in the area of the eye. Alizarin Cyanine Green F is also proposed for use in semi-permanent hair dye formulations as a direct dye at a maximum concentration of 0.3% in the finished cosmetic product.