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cas no:18559-94-9||chemical formula:c13h21no3||molecular weight:239.31500||exact mass:239.15214||4-(2-(tert-butylamino)-1-hydroxyethyl)-2-(hydroxymethyl)phenol,……

cas no:870076-72-5||chemical formula:c14h23no3||molecular weight:253.34200||exact mass:253.16779||(r)-4-(2-(tert-butylamino)-1-methoxyethyl)-2-(hydroxymethyl)ph……

cas no:112337-52-7(hcl),96948-64-0 (free base)||chemical formula:c12h19no2||molecular weight:209.28900||exact mass:209.14158||(rs)-4-(2-(tert-butylamino)-1-hydr……

cas no:18910-68-4（free base);1956308-05-6 (sulfate salt)||chemical formula:c13h21no2||molecular weight:223.31600||exact mass:223.15723||(r)-4-(2-(tert-butylamin……

cas no:156339-88-7||chemical formula:c13h19no3.hcl||molecular weight:237.29900.36.45800||exact mass:237.13649 .35.97668||(r)-5-(2-(tert-butylamino)-1-hydroxyeth……

cas no:24085-03-8||chemical formula:c20h27no3||molecular weight:329.44000||exact mass:329.19909||(rs)-4-(2-(benzyl(tert-butyl)amino)-1-hydroxyethyl)-2-(hydroxym……

cas no:64092-10-0||chemical formula:c20h25no3·cf3cooh ||molecular weight:327.42400·114.02 ||exact mass:327.18344·114.02 ||2-(benzyl(tert-butyl)amino)-1-(4-hydr……

cas no:56796-66-8||chemical formula:c20h27no3||molecular weight:329.44000||exact mass:329.19909 ||(1rs)-2-[(1,1-dimethylethyl)aminol]-1-[4-(benzyloxy)-3-(hydrox……

cas no:41489-89-8(hydrochloride)||chemical formula:c13h19no3||molecular weight:237.29900||exact mass:237.13649||2-(tert-butylamino)-1-(4-hydroxy-3-(hydroxymethy……

cas no:898542-80-8||chemical formula:c13h18clno3·cf3cooh||molecular weight:271.74100·114.02||exact mass:271.09752·114.02"||2-(tert-butylamino)-1-(3-chloro-4-hyd……

cas no:898542-81-9||chemical formula:c13h20clno3||molecular weight:273.75700||exact mass:273.11317||(rs)-4-(2-(tert-butylamino)-1-hydroxyethyl)-2-chloro-6-(hydr……

cas no:18910-70-8||chemical formula:c14h23no3||molecular weight:253.34200||exact mass:253.16779||(r)-4-(2-(tert-butylamino)-1-hydroxyethyl)-2-(methoxymethyl)phe……