Several N,N-dialkylated tryptamine derivatives are known to induce altered states of consciousness and the term “hallucinogen” is commonly used in an attempt to describe their powerful impact on the human mind. These compounds have generated growing interest in the psychiatry, neuroscience, psychopharmacology and recreational communities. Recent representatives that have been used in human clinical studies include N,N-dimethyltryptamine (DMT) and psilocybin. A large number of these derivatives are classified as controlled substances and one predictable consequence of prohibition by legislation is the creation of a clandestine trade. The corollary of this is the inability to exercise quality control over the illegally prepared compounds which often leads to low quality drugs with unpredictable biological activity and ill-defined impurity profiles.