We are a manufacture and exporter dealing with acid blue 9, acid yellow 23, dye intermediates, food colors and basic dyes. Please find our products as follows: Acid dyes: Acid Blue9# Acid Yellow 23#. Food colours: Tartrazine, Sunsetyellow, Ponceau4R, Brilliantblue, Amaranth, Erythrozine, Brilliant black, Chocolate brown, Food white, Apple green, Grape violet, Tea, Leaf green, York yellow. Dye intermediates: Dimethyl Acetyl succinic (DMAS), sulfanilic acid-sodium salt, sulfanilic acid, 1-naphthylamine-4-sulfonic acid sodium salt