| Synonyms | Calcium glutamate |
| Definition | |
| Chemical name | Monocalcium di-L-glutamate |
| Einecs | 242-905-5 |
| Chemical formula | C10H16CaN2O8 · x H2O (x = 0, 1, 2 or 4) |
| Molecular weight | 332,32 (anhydrous) |
| Assay | Content not less than 98,0 % and not more than 102,0 % on the anhydrous basis |
| Description | White, practically odourless crystals or crystalline powder |
| Identification | |
A.Positive test for calcium | |
B.Positive test for glutamic acid by thin-layer chromatog-raphy | |
C.Specific rotation [α]D 20 | Between 27,4 and 29,2 (for calcium diglutamate with x = 4) (10 % solution (anhydrous basis) in 2N HCl, 200 mm tube) |
| Purity | |
| Water | Not more than 19,0 % (for calcium diglutamate with x = 4) (Karl Fischer) |
| Chloride | Not more than 0,2 % |
| Pyrrolidone carboxylic acid | Not more than 0,2 % |
| Lead | Not more than 2 mg/kg |
