4-Hydroxy Ketotifen ;

(4RS)-4-Hydroxy-4-(1-methylpiperidin-4-yl)-4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one ;

CAS # 126939-27-3 ;

C19H21NO2S ;
Mol. Wt.: 327.44 ;