n-ethylhexylone n-ethylhexylone n-ethylhexylone is a recreational designer drug from the substituted cathinone family, with stimulant effects. it was first identified in poland in august 2019. it is illegal in taiwan since july 2020, where it had been sold mixed with plant material under the name 彩虹菸 ("rainbow tobacco" or "rainbow smoke"). n-ethylhexyloneidentifiers iupac name 1-(1,3-benzodioxol-5-yl)-2-(ethylamino)hexan-1-one cas number802605-02-3 y 27912-41-0 (hydrochloride)pubchem cid137700399unii4906kzk4yochemical and physical dataformulac15h21no3molar mass263.337 g·mol−13d model (jsmol)interactive image smiles ccccc(ncc)c(=o)c1ccc2ococ2c1