Acid Red 18 (acid red 3r) dyes [ Molecular Formula ] : C20H11N2Na3O10S3 [ Colour Index ] : C.I. Acid Red 18 [Cas No]. 2611-82-7 [Molecular Weight]: 604.47 [Appearance]:Shinning Red Powder [Strength]:100% [Shade]: standard [Water-insoluble Impurities: ]1 %Max [Moisture%]:5Max [Properties]:It is soluble in water and alcohol. [ Use ] : Dyeing Leather, Silk, Nylon and Wool Fabric. [Packages]25kgs iron drums, cartons, woven bags. [Storage & Transportation]: The product must be stored in shade, dry & well-ventilated warehouse. Avoid to be contacted with oxidizing chemicals and combustible organic substances. Keep it away from direct sunlight, heat, sparks and open flames. Carefully handle the product and avoid damaging the package.