Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 31677-93-7, Whether you call it Bupropion Hydrochloride or DL-1-(3-Chlorophenyl)-2-[(1 -1-dimethylethyl)amino]-1-propanone Hydrochloride you can be assured the products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.