1-tert-Butylamino-3-(4-hydroxythio chroman-8-yloxy)-2-propanol 111897-93-9 2H-1-Benzothiopyran-4-ol, 8-(3-((1,1-dimethylethyl)amino)-2-hydroxypropoxy)-3,4-dihydro- 4-Hydroxytertatolol S 10950 S-10950