Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 146-77-0, Whether you call it 2-Chloroadenosine, 6-Amino-2-chloropurine Riboside or 2-CADO you can be assured the 2-Chloroadenosine products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.