Over-reduced albuterol;Levalbuterol Related Compound B;3-Dehydroxy Salbutamol;4-[2-(tert-butylamino)-1-hydroxyethyl]-2-methylphenol;ALBUTEROL IMPURITY C;Salbutamol EP Impurity C;α-{[(1,1-Dimethylethyl)amino]methyl}-4-hydroxy-3-methylbenzenemethanol;Levalbuterol RC B ( Salbutamol EP Impurity C);4-[2-[(1,1-Dimethylethyl)amino]-1-hydroxyethyl]-2-methylphenol;α-[[(1,1-dimethylethyl)amino]methyl]-4-hydroxy-3-methyl-Benzenemethanol;Levalbuterol Related Compound B (20 mg) (alpha-[{(1,1-Dimethylethyl)amino}methyl]-4-hydroxy-3-methyl-benzenemethanol)