formetorex formetorex formetorex (inn), also known as formetamide or n-formylamphetamine, is a substituted amphetamine described as an anorectic which does not appear to have ever been marketed. formetorex names preferred iupac name n-(1-phenylpropan-2-yl)formamide other names formetorexn-formylamphetamine n-(alpha-methylphenethyl)formamide identifiers cas number 15302-18-8 n 3d model (jsmol) interactive image beilstein reference 1563 chembl chembl1395071 chemspider 59055 pubchem cid 65614 unii 30555lm9sq comptox dashboard (epa) dtxsid6046135 inchi inchi=1s/c10h13no/c1-9(11-8-12)7-10-5-3-2-4-6-10/h2-6,8-9h,7h2,1h3,(h,11,12) smiles cc(cc1=cc=cc=c1)nc=o properties chemical formula c10h13no molar mass 163.220 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references formetorex is also an intermediate in the production of amphetamine by the "leuckart reaction." it is also commonly found as an impurity in clandestine labs where this synthesis method is used. due to the simplicity of the leuckart reaction, it is the most popular synthetic route employed for the illicit manufacture of amphetamines. the synthesis involves a non-metal reduction that is typically carried out in three steps. for amphetamine synthesis, a mixture of phenylacetone and formamide (sometimes in the presence of formic acid) or ammonium formate, is heated until a condensation reaction results in the intermediate product, formetamide. in the second step, formetamide is hydrolysed using hydrochloric acid, and the reaction mixture is then basified, isolated, and steam distilled to produce the free base. the final step, the product is dissolved in an organic solvent and precipitated as the sulphate salt of amphetamine by adding sulfuric acid. amphetamine synthesis via the leuckart reaction