Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 76824-35-6, Whether you call it Famotidine or 3-[(2-Diaminomethyleneaminothiazol-4-yl)methylthio]-N-sulfamoylpropionamidine you can be assured the products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.