This document provides information about MDMA (Ecstasy), including its chemical composition, synthesis process, physical and behavioral effects, risks, and common contexts of use. MDMA is derived from plant oils and related to amphetamines and hallucinogens. It causes short term effects like increased heart rate and long term risks like liver disease. Behaviorally, it often produces feelings of intimacy, happiness, and altered perception of time. Raves are large parties where MDMA is commonly used that feature loud music, bright lights, and dancing.