L-Glutamine

L-Glutamine is an essential amino acid that is a crucial component of culture media that serves as a major energy source for cells in culture. L-Glutamine is very stable as a dry powder and as a frozen solution. In liquid media or stock solutions, however, L-glutamine degrades relatively rapidly. Optimal cell performance usually requires supplementation of the media with L-glutamine prior to use. Synonyms: (S)-2,5-Diamino-5-oxopentanoic Acid, 2-Aminoglutaramic Acid, Acustasin, Aesgen 14, Cebrogen, Glumin, L-2-Aminoglutaramidic Acid, L-Glutamic Acid gamma-?mide, Levoglutamide, NSC 27421, Saforis, Stimulina, gamma-Glutamine, L-Gln-OH, CAS No: 56-85-9, Molecular Formula: C5H10N2O3, Molecular Weight: 146.15, Appearance: White crystal or crystalline powder, Purity: >99%, Identification (IR): Conform to reference, Specific Rotation: +6.3° to +7.3° (after drying), Loss on Drying: <0.2%, Residue on Ignition: <0.1%, Heavy Metals (Pb): <0.0005%, pH: 4.0-6.0, Chloride: <0.02%, Sulfate: <0.02%, Iron: <0.001%, Arsenic: <0.0001%, Foreign Amino Acids: <0.5%, Endotoxin: <0.5EU/mg, Microbial Testing: Total Plate Count: <1000CFU, Yeast and Mold: <100CFU, Coliform: Negative, Storage: RT, , Meets or exceeds USP specifications. Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards:  All products should be handled by qualified personnel only, trained in laboratory procedures.