Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 66085-59-4, Whether you call it Nimodipine or 1 -4-Dihydro-2 -6-dimethyl-4-(3-nitrophenyl)-3 -5-pyridinedicarboxylic Acid 2-Methoxyethyl-1-methylethyl Ester you can be assured the products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.