Chemical Name: Sulfanilic acid Structural Formula: Chemical Formula: C6H7NO3S Molecular Weight: 173.18648 CAS NO.: 121-57-3 Product Index: Item Index 1. Appearance White to grey white powder 2. Purity (total amino value) 99.0% 3. Density 1.485g/cm3 4. Fusion Point 285C 5. Water-solubility 0.1 g/100 mL. Main use: for azo dyes manufacturing, also for agricultural chemicals to prevent wheat rust. 25KG plastic woven bag.