Not Less Than - 95%
O-Methyl Albuterol; 4-[(1RS)-2-(tert-Butylamino)-1-hydroxyethyl]-2-(methoxymethyl)phenol; 4-(2-(tert-Butylamino)-1-hydroxyethyl)-2-(methoxymethyl)phenol; α-[[(1,1-Dimethylethyl)amino]methyl]-4-hydroxy-3-(methoxymethyl)benzenemethanol; Benzyl alcohol, α-[(tert-butylamino)methyl]-4-hydroxy-3-(methoxymethyl); Benzenemethanol, α-[[(1,1-dimethylethyl)amino]methyl]-4-hydroxy-3-(methoxymethyl); Levalbuterol Related Compound C (USP);