Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 87-89-8, Whether you call it Inositol, meso-Inositol , 1 -2 -3 -5/4 -6-Cyclohexanehexol or myo-Inositol you can be assured the Inositol products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.