This alpha-pinene borane, also known as (-)-N,N'-Bis(monoisopinocampheylborane)-N,N,N',N'-tetramethylethylenediamine, presents as a white to off white crystal powder. Store in tightly closed container in a cool, dry and well-ventilated place. (-)-Isopinocampheylborane TMEDA Complex is incompatible with strong oxidizong agents, is flammable, and releases flammable gasses on contact with water. It can cause skin irritation and serious eye irritation. Protect from moisture and handle under inert gas for best results.