| Synonyms | L-Glutamic acid, L-α-aminoglutaric acid |
| Definition | |
| Chemical name | L-Glutamic acid, L-2-amino-pentanedioic acid |
| Einecs | 200-293-7 |
| Chemical formula | C5H9NO4 |
| Molecular weight | 147,13 |
| Assay | Content not less than 99,0 % and not more than 101,0 % on the anhydrous basis |
| Description | White crystals or crystalline powder |
| Identification | |
A.Positive test for glutamic acid by thin layer chromatography | |
B.Specific rotation [α]D20 | Between 31,5o and 32,2o |
| (10 % solution (anhydrous basis) in 2N HCl, 200 mm tube) |
C.pH of a saturated solution | Between 3,0 and 3,5 |
| Purity | |
| Loss on drying | Not more than 0,2 % (80 oC, 3h) |
| Sulphated ash | Not more than 0,2 % |
| Chloride | Not more than 0,2 % |
| Pyrrolidone carboxylic acid | Not more than 0,2 % |
| Lead | Not more than 2 mg/kg |