Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 33386-08-2, Whether you call it Buspirone Hydrochloride or 8-(4-[4-(2-Pyrimidinyl)-1-piperazinyl]butyl)-8-azaspiro[4 -5]decane-7 -9-dione Hydrochloride you can be assured the products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.