Buspirone STD (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))
Buspirone EP Impurity E [1-[2-Oxo-2-[[4-[4-(pyrimidin-2-yl)piperazin-1-yl]butyl]amino]ethyl]cyclopentyl]acetic acid
Buspirone EP Impurity G 2,2'-(1,4-Piperazinediyl)bis-pyrimidine; 2,2'-(Piperazine-1,4-diyl)dipyrimidine; 1,4-Bis(2-pyrimidinyl)piperazine; Chlorobuspirone; 1,4-Di(pyrimidin-2-yl)piperazine
Buspirone EP Impurity J 4-(7,9-Dioxo-8-azaspiro[4.5]dec-8-yl)butyl [1-[2-oxo-2-[[4-[4-(pyrimidin-2-yl)piperazin-1-yl]butyl]amino]ethyl]-cyclopentyl]acetate