"Phenethylamines refer to a class of substances with documented psychoactive and stimulant effects and include amphetamine, methamphetamine and MDMA, all of which are controlled under the 1971 Convention.41 The phenethylamines also include ring-substituted substances such as the ‘2C series’, ring-substituted amphetamines such as the ‘D series’ (e.g. DOI, DOC), benzodifurans (e.g. Bromo-Dragonfly, 2C-B-Fly) and others (e.g. p-methoxymethamphetamine (PMMA)).
"Seizures of phenethylamines were first reported from the United States and European countries and since 2009 substances such as 2C-E, 2C-I, 4-FA and PMMA have been commonly reported by several countries in different regions. Other phenethylamines increasingly reported in the UNODC questionnaire on NPS since 2011 include 4-FMA, 5-APB, 6-APB and 2C-C-NBOMe.
"A number of studies have reported the synthesis of some phenethylamines and amphetamine substitutes. In the 1980s and 1990s, Alexander Shulgin, a biochemist and pharmacologist, reported the synthesis of numerous new psychoactive compounds.42 This included the ‘D series’ (e.g. DOC, DOI) and the ‘2C series’ (e.g. 2C-T-7, 2C-T-2) of phenethylamines."
UN Office on Drugs and Crime, "The Challenge of New Psychoactive Substances: A Report from the Global SMART Programme" (Vienna, Austria: UNODC Laboratory and Scientific Section, March 2013), p. 9.