10031-43-3-CopperII-Nitrate-TrihydrateAR500 Copper(II) Nitrate Trihydrate AR CAS Number: 10031-43-3 Assay: Min. 99.5% Linear Formula: CuN₂O₆ * 3 H₂O Molecular Weight: 241.60 Physical Form: Other Packaging: Plastic Bottle, Plastic Case