4-[3-(tert-butylamino)-2-hydroxypropoxy]benzene-1,2-diol 4-[3-(tert-butylamino)-2-hydroxy-propoxy]benzene-1,2-diol 4-[3-(tert-butylamino)-2-hydroxy-propoxy]pyrocatechol 3-(Phenoxy)propylamine, N-t-butyl-.beta.,3,4-trihydroxy- Phenoxypropylamine, N-t-butyl-.beta.,3,4-trihydroxy-