Keywords: (±)-Procaterol Enantiomers Structural Formula.png en ± -Procaterol_Enantiomers_Structural_Formula de ± -Procaterol_Enantiomere_Strukturformeln own Jü 2010-01-23 Racemic mixture of 1R 2S -enantiomer and 1S 2R -enantiomer Quinolones Racemic mixture |