2-Butyl-3-[4-(2-Dibytylaminopropoxy)benzoyl]-5-Nitrobenzofuran Apperance: Off-white to beige crystalline solid Sulphated Ash: <0.3% HPLC Purity: >99.0 Any impurity: <0.2% Assay by HPLC: 99.0%-101% Loss on drying: 0.5% CAS No.: 141645-23-0