Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 18422-05-4, Whether you call it Adenosine 5-Monophosphate, Monohydrate, AMP or 5'-Adenylic Acid you can be assured the Adenosine 5-Monophosphate, Monohydrate products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.