2(1H)-Quinolinone, 8-hydroxy-5-(1-hydroxy-2-((1-methylethyl)amino)butyl)-, (R*,S*)-(+-)- 62929-91-3 72332-33-3 8-Hydroxy-5-(1-hydroxy-2-((1-methylethyl)amino)butyl)-2(1H)-quinolinone (R*,S*)-(+-)- EINECS 276-590-0 PROCATEROL Procaterolo [DCIT] Procaterolum [INN-Latin] Procaterolum [Latin]