Description Phenylarsine Oxide, 99%, 5g For Research & Development Not for drug, clinical use in humans, for food or food additive use Certificate of Analysis: Appearance (Color) WhiteAppearance (Form) Powder Assay (Titration) 99.0% Infrared Spectrum Conforms to structure Melting Point 145-148 ºC Solubility 100mg/ml chloroform, 50mg/ml DMSO CAS: 637-03-6 FORMULA: C6H5AsO