This amphetamine, also known as d-Isoephedrine, presents as a colorless crystalline powder. It is soluble in water. Store in a tightly closed container in a dry and well-ventilated place. This substance is stable under recommended storage conditions. (+)-Pseudoephedrine is considered a controlled substance in some countries and is incompatible with strong oxidizing agents. This chemical is harmful if swallowed, in contact with skin or if inhaled. Causes skin irritation, serious eye irritation, may cause respiratory irritation.