| Synonyms | Magnesium glutamate |
| Definition | |
| Chemical name | Monomagnesium di-L-glutamate tetrahydrate |
| Einecs | 242-413-0 |
| Chemical formula | C10H16MgN2O8 · 4H2O |
| Molecular weight | 388,62 |
| Assay | Content not less than 95,0 % and not more than 105,0 % on the anhydrous basis |
| Description | Odourless, white or off-white crystals or powder |
| Identification | |
A.Positive test for magnesium | |
B.Positive test for glutamic acid by thin-layer chromatog-raphy | |
C.Specific rotation [α]D 20 | Between 23,8o and 24,4o |
| (10 % solution (anhydrous basis) in 2N HCl, 200 mm tube) |
D.pH of a 10 % solution | Between 6,4 and 7,5 |
| Purity | |
| Water | Not more than 24 % (Karl Fischer) |
| Chloride | Not more than 0,2 % |
| Pyrrolidone carboxylic acid | Not more than 0,2 % |
| Lead | Not more than 2 mg/kg |