Ecstasy is a stimulant and hallucinogenic drug—it is similar to "speed" or amphetamine but also has properties that produce hallucinations. It does not occur in nature and must be synthesized. Its chemical name is MDMA. It is also known as E, X, XTC, Adam, Clarity, Lover's Speed, Hugs, Beans, and by many other names. Ecstasy is often referred to as a club drug because of its popular use in night clubs, bars, and raves, which are high-intensity dance parties held in empty warehouses, basements, or open fields and typically last all night.