Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 56-85-9, Whether you call it L-Glutamine, L-2-Aminoglutaramic Acid , Levoglutamide or L-Glutamic Acid 5-Amide you can be assured the L-Glutamine products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.