Keywords: (pseudo)ephedrine enantiomers.svg en The two pairs of enantiomers of ephedrine Top ephedrine<br> Bottom pseudoephedrine<br> IUPAC Name 2- methylamino -1-phenylpropan-1-ol The stereocenters are numbered own Wickey-nl 2009-12-15 Ephedrine Pseudoephedrine Inkscape validSVG |