Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 152-11-4, Whether you call it Verapamil Hydrochloride, (+/-)-5-[N-(3 -4-Dimethoxyphenylethyl)methylamino]-2-(3 -4-dimethoxyphenyl)-2-isopropylvaleronitrile Hydrochloride or Iproveratril Hydrochloride you can be assured the Verapamil Hydrochloride products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.