Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 320-67-2, Whether you call it 5-Azacytidine, 4-Amino-1-(Beta-D-ribofuranosyl)-1 -3 -5-triazin-2(1H)-one or Ladakamycin you can be assured the 5-Azacytidine products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.