Buspirone (8-(4-(4-(Pyrimidin-2-yl)piperazin-1-yl)butyl)-8-azaspiro[4.5]decane-7,9-dione)
Buspirone EP Impurity L (8-(4-Chlorobutyl)-8-azaspiro[4.5]decane-7,9-dione, Buspirone USP Related Compound L)
Buspirone EP Impurity N (8,8′-(Butane-1,4-diyl)bis(8-azaspiro[4.5]decane-7,9-dione))