Description 2,3,5-Trichlorobenzaldehyde, 99.4%, 5g For Research & Development Not for drug, human, animal, or food use Certificate of Analysis: Appearance (Color) Off-white Appearance (Form) Powder Assay (Titration) 99.4% (with AgNO3 after oxygen combustion) Infrared Spectrum Conforms to structure Proton NMR Spectrum Conforms to structure Gas Liquid Chromatography 98.0% CAS: 56961-75-2 FORMULA: C7H3Cl3O