This chiral reagent, also known as Zilden, presents as a white to off-white solid. It is slightly soluble in DMSO, Methanol and water. Store in a tightly closed container in a dry and well-ventilated place at 2-8° C. This substance is stable under recommended storage conditions. (+)-cis-Diltiazem Hydrochloride is harmful if swallowed and is incompatible with strong oxidizing agents.