Home Active Pharmaceutical Ingredients niclosamide NICLOSAMIDE Product Name : Niclosamide BP/EP/USP Chemical Name : 5-chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide CAS Number : 50-65-7 Chemical Formula : C13H8Cl2N2O4? Molecular Mass : 327.12 g/mol Therapeutic Category : Anti-anthelmintic Test Specification Description Yellowish white or Yellowish, fine crystals Identification Comparing with spectrum of Anhydrous Niclosamide CRS Solubility Practically insoluble in water, sparingly soluble in Acetone Slightly soluble in Ethanol Loss On Drying NMT 0.5% w/w Assay on dried basis by HPLC 98% - 101% Sulphated Ash NMT 0.1% w/w Chloride NMT 500 ppm Melting Range 227°C - 232°C