L-Glutamine Basic Information Description References Product Name: L-Glutamine CAS: 56-85-9 MF: C5H10N2O3 MW: 146.14 EINECS: 200-292-1 Mol File: 56-85-9.mol L-Glutamine Structure L-Glutamine Chemical Properties Melting point 185 °C (dec.)(lit.) alpha 32.25 º (c=10, 2 N HCl) Boiling point 265.74°C (rough estimate) density 1.47 g/cm3 (20℃) refractive index 6.8 ° (C=4, H2O) Fp 185°C storage temp. −20°C solubility H2O: 25 mg/mL pka 2.17(at 25℃) form solution color White PH 5.0-6.0 (25℃, 0.1M in H2O) Water Solubility Soluble in water, dimethyl sulfoxide and ethanol. Insoluble in methanol, ether, benzene, acetone, ethyl acetate and chloroform. Decomposition 185 ºC