General description May contain varying amounts of anhydride. Packaging 1, 10 g in glass bottle Application Reactant for: • Preparation of dihalogenated pyrazoles via dipolar cycloaddition by palladium-catalyzed cross-coupling processes1 • Suzuki-Miyaura cross-coupling2 • Synthesis of the isocryptolepine alkaloid and its related skeletons using a modified Pictet-Spengler reaction3