L-Glutamic acid is an amino acid with the molecular formula C5H9NO4. The appearance is white crystalline powder, almost odorless, with a special taste and sour taste. Decompose at 224-225 oC. The pH value of saturated aqueous solution is about 3.2. Difficult to dissolve in water, actually insoluble in ethanol and ether.

3. Biochemical research. Bacteriology and tissue culture.

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